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101 Python Challenges 101 Extra Python Challenges

My Class Register

Posted on by Administrator Posted in Computer Science, Python - Beginner, Python Challenges, Solved Challenges

class-register-clipboardFor this challenge we will create a program to be used by a teacher at a start of a lesson to take the register. The program will go through a class list and for each pupil in the list, will ask the teacher if the pupils is present (y) or absent (n).

The program will then output the total number of students in the class, the number of students present and the number of students who are absent.

Flowchart / Algorithm


We have designed the following flowchart for this program. This algorithm uses a list called pupils used to store the names of all the students in the class.
class-register-flowchart

Python Code


Your tasks is to type the Python code following the steps identified in the above flowchart.

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Pentagram Challenge

Posted on by Administrator Posted in Computer Science, Python - Intermediate, Python Challenges, Solved Challenges

pentagon-circumcircleA polygon is a plane shape (2D) with straight lines. It consists of vertices and edges.

A polygon is regular when all angles are equal and all sides are equal. For instance a regular pentagon consists of 5 vertices and 5 edges of equal size. The vertices of a regular pentagon are equally spread on a circle. This outside circle is called a circumcircle, and it connects all vertices (corner points) of the polygon. The radius of the circumcircle is also the radius of the polygon. We can use the trigonometric formulas to work out the (x,y) coordinates of each vertex of a regular pentagon. (See picture on the right).

Using this approach, we can use a Python script to calculate the (x,y) coordinates of the 5 vertices of a regular pentagon and store them in a list of [x,y] sub-lists.

pentagon=[]
R = 150
for n in range(0,5):
  x = R*math.cos(math.radians(90+n*72))
  y = R*math.sin(math.radians(90+n*72))
  pentagon.append([x,y])

Star Shapes


pentagramA pentagram is a polygon that looks like a 5-pointed star. The outer vertices (points of the stars) form a regular pentagon. The inner vertices of the star also form a smaller “inner” regular pentagon.

We can hence use a similar approach to calculate the (x,y) coordinates of both “outer” and “inner” vertices of our pentagram.
pentagram-coordinates

Python Turtle


We have completed the code to calculate the coordinates of a regular pentagon (using the code provided above) and have created a function called drawPolygon() that uses Python Turtle to draw a polygon on screen.

Your Task


Adapt the above Python code to calculate the coordinates of all the vertices of a pentagram (star shape) and draw the pentagram on screen.

The output of your program should be as follows:
pentagram-star-shape

Extension Task


Use the shoelace algorithm to calculate the area of your pentagram.
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The Shoelace Algorithm

Posted on by Administrator Posted in Algorithms, Computer Science, Python - Advanced, Python Challenges, Solved Challenges

shoelace-formula-polygonThe shoelace formula or shoelace algorithm is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane.

The method consists of cross-multiplying corresponding coordinates of the different vertices of a polygon to find its area. It is called the shoelace formula because of the constant cross-multiplying for the coordinates making up the polygon, like tying shoelaces. (See table below). This algorithm has applications in 2D and 3D computer graphics graphics, in surveying or in forestry, among other areas.

the-shoelace-formula

To apply the shoelace algorithm you will need to:

  • List all the vertices in anticlockwise order. (e.g. A,B,C,D,E) in a table, and note the x and y coordinates in two separate columns of the table,
  • Calculate the sum of multiplying each x coordinate with the y coordinate in the row below (wrapping around back to the first line when you reach the bottom of the table),
  • Calculate the sum of multiplying each y coordinate with the x coordinate in the row below (wrapping around back to the first line when you reach the bottom of the table),
  • Subtract the second sum from the first, get the absolute value (Absolute dfference |sum1-sum2|,
  • Divide the resulting value by 2 to get the actual area of the polygon.

shoelace-table

the-shoelace-formula-ABCDE

The Shoelace Algorithm using Python:


To implement the shoelace algorithm we will define a polygon as a list of vertices, listed in anticlockwise order. Each vertex will be a list of 2 values: its x and y coordinates.

Alternative Approach


The above algorithm requires the computer to calculate two different sums that could potentially lead to very high numbers. On occasion these numbers could generate an overflow error if they reach the maximum capacity of an integer value.

The Shoelace formula can be rewritten as follows:
the-shoelace-formula-v2

In this case the python code given above can be adapted to reflect this new formula and reduce the risk of creating an overflow error.

Your task is to tweak the above code to base the code on this alternative Shoelace formula.

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Sorting Algorithms using Python

Posted on by Administrator Posted in A Level Concepts, Algorithms, Computer Science, Computing Concepts, Python - Advanced, Python Challenges

sorting-algorithms-pythonComputers are often used to sort large amounts of data. Though this may seem like a simple task to complete, a lot of research has focused on finding the most effective algorithms to sort large amount of data.

Four of the most basic algorithms to sort a set of data are:

  • Insertion Sort Algorithm,
  • Bubble Sort Algorithm,
  • Selection Sort Algorithm,
  • Merge Sort Algorithm.

    • We have implemented each these algorithms below, using Python to sort a set list of values.

    Insertion SortBubble SortSelection SortMerge Sort

    Insertion Sort


    The insertion sort is an iterative algorithm (using nested loops).


    Bubble Sort


    The Bubble sort is an iterative algorithm (using nested loops).


    Selection Sort


    The selection sort is an iterative algorithm (using nested loops).


    Merge Sort


    The merge sort algorithm uses a recursive function.


Merge Sort Algorithm

Posted on by Administrator Posted in A Level Concepts, A Level Quiz, Algorithms, Algorithms (GCSE), Computer Science, Computing Concepts, GCSE Concepts, GCSE Quiz

Computers are often used to process large amounts of data. Some of the tasks they can be used for is to sort data sets in order, e.g. numerical order or alphabetical order. Though this may seem like a simple task to complete, a lot of research has focused on finding the most effective sorting algorithm, especially when working on large data sets.

One of the key sorting algorithms is called a merge sort and is based on a divide and conquer approach.

Merge-Sort-Algorithm

Your Task


Practise sorting lists of numbers using a Merge sort: (Open in new window)

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Bubble Sort vs. Insertion Sort

Posted on by Administrator Posted in A Level Concepts, A Level Quiz, Algorithms, Algorithms (GCSE), Computer Science, Computing Concepts, GCSE Concepts, GCSE Quiz

sorting-algorithmsComputers are often used to sort large amounts of data (e.g. numerical order or alphabetical order). Though this may seem like a simple task to complete, a lot of research has focused on finding the most effective approach to sort data.

Two of the most basic algorithms used to sort data are the Bubble Sort Algorithm, and the Insertion Sort Algorithm.

Insertion-sort-1-9

Insertion Sort Algorithm


To start with, the algorithm considers the first value of a list as a sorted sub-list (of one value to start with). This iterative algorithm then checks each value in the remaining list of values one by one. It inserts the value into the sorted sub-list of the data set in the correct position, moving higher ranked elements up as necessary.

This algorithm is not always very efficient and is mostly recommended when sorting a small lists of values or a list that is already almost sorted.

You can check our Python implementation of this algorithm on this blog post.

Bubble-sort-1-9

Bubble Sort Algorithm


The algorithm starts at the beginning of the data set. It compares the first two value, and if the first is greater than the second, it swaps them. It continues doing this for each pair of adjacent values to the end of the data set. It then starts again with the first two elements, repeating until no swaps have occurred on the last pass.

This algorithm is particularly useful when you need to find the top x values of a list.

You can check our Python implementation of this algorithm on this blog post.

Your Task


Practise sorting lists of numbers using both the Insertion sort and the Bubble sort algorithms using the two tabs below:
Insertion SortBubble Sort
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Random Password Generator

Posted on by Administrator Posted in Computer Science, Python - Beginner, Python Challenges, Solved Challenges

passwordFor this challenge, we will use a Python script to generate a random password of 8 characters. Each time the program is run, a new password will be generated randomly. The passwords generated will be 8 characters long and will have to include the following characters in any order:

  • 2 uppercase letters from A to Z,
  • 2 lowercase letters from a to z,
  • 2 digits from 0 to 9,
  • 2 punctuation signs such as !, ?, “, # etc.

To solve this challenge we will have to generate random characters and to do so we will need to use the ASCII code.

ASCII Code


The ASCII code (Pronounced ask-ee) is a code for representing English characters as numbers, with each character assigned a number from 0 to 127. For example, the ASCII code for uppercase M is 77. The extended ASCII code contains 256 characters (using numbers from 0 to 255).

To see a list of the most useful ASCII codes you can download our simplified ASCII helpsheet.

Using Python you can easily access ASCII values of a character using the ord() function. For instance ord(“M”) returns 77 and chr(77) returns “M”

When looking at the list of most widely used ASCII codes you will notice that all uppercase letters from A to Z have an ASCII code between 65 (=A) and 90 (=Z). To generate a random uppercase letter between A and Z we can hence use the following Python code:

import random
uppercaseLetter=chr(random.randint(65,90)) #Generate a random Uppercase letter (based on ASCII code)

Flowchart


To help you solve this challenge, we have completed the flowchart of our random password generator algorithm:
random-password-generator-flowchart
This algorithm is an example of:
sequencing-label

Python Code


You can use the flowchart above as well as our ASCII helpsheet to complete the code provided below.

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Solution...

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Prolog – Family Tree

Posted on by Administrator Posted in A Level Concepts, Computer Science, Computing Concepts

family-treeProlog is a language built around the Logical Paradigm: a declarative approach to problem-solving.

There are only three basic constructs in Prolog: facts, rules, and queries.

A collection of facts and rules is called a knowledge base (or a database) and Prolog programming is all about writing knowledge bases. That is, Prolog programs simply are knowledge bases, collections of facts and rules which describe some collection of relationships that we find interesting.

So how do we use a Prolog program? By posing queries. That is, by asking questions about the information stored in the knowledge base. The computer will automatically find the answer (either True or False) to our queries.

Source: http://www.learnprolognow.org/

Knowledge Base (Facts & Rules)


Check the following knowledge base used to store the information that appears on a family tree:

/* Facts */
male(jack).
male(oliver).
male(ali).
male(james).
male(simon).
male(harry).
female(helen).
female(sophie).
female(jess).
female(lily).

parent_of(jack,jess).
parent_of(jack,lily).
parent_of(helen, jess).
parent_of(helen, lily).
parent_of(oliver,james).
parent_of(sophie, james).
parent_of(jess, simon).
parent_of(ali, simon).
parent_of(lily, harry).
parent_of(james, harry).

/* Rules */
father_of(X,Y):- male(X),
    parent_of(X,Y).

mother_of(X,Y):- female(X),
    parent_of(X,Y).

grandfather_of(X,Y):- male(X),
    parent_of(X,Z),
    parent_of(Z,Y).

grandmother_of(X,Y):- female(X),
    parent_of(X,Z),
    parent_of(Z,Y).

sister_of(X,Y):- %(X,Y or Y,X)%
    female(X),
    father_of(F, Y), father_of(F,X),X \= Y.

sister_of(X,Y):- female(X),
    mother_of(M, Y), mother_of(M,X),X \= Y.

aunt_of(X,Y):- female(X),
    parent_of(Z,Y), sister_of(Z,X),!.

brother_of(X,Y):- %(X,Y or Y,X)%
    male(X),
    father_of(F, Y), father_of(F,X),X \= Y.

brother_of(X,Y):- male(X),
    mother_of(M, Y), mother_of(M,X),X \= Y.

uncle_of(X,Y):-
    parent_of(Z,Y), brother_of(Z,X).

ancestor_of(X,Y):- parent_of(X,Y).
ancestor_of(X,Y):- parent_of(X,Z),
    ancestor_of(Z,Y).

Note that \+ means NOT

Queries


We can now query this database. For each of the queries listed below, what do you think the computer will return?

True or False Queries:
The following queries would return either True or False.

?-mother_of(jess,helen).
?-brother_of(james,simon).
?-ancestor_of(jack,simon).
etc.

Other Queries:
The following queries would return a solution which could be either:

  • A unique value
  • A list of values
  • False if no solution can be found
?-mother_of(X,jess).
?-parent_of(X,simon).
?-sister_of(X,lily).
?-ancestor_of(X,lily).
etc.

Your Task:


Use a range of queries, similar to the one above to interrogate the knowledge base and complete the family tree provided below.

To run your queries you will need to use the online Prolog environment:
https://swish.swi-prolog.org/p/prolog-family-tree.pl

Here is the template for the family tree for you to complete:
prolog-family-tree

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Computer Networks Concepts

Posted on by Administrator Posted in A Level Concepts, A Level Quiz, Computer Networks, Computer Science, Computing Concepts, Computing Terminology Quiz, GCSE Concepts, GCSE Quiz, Quizzes

Click on the picture below to check your knowledge of key Network concepts: Network components and Internet concepts.


network-concepts

Network ConceptsOpen Domino Activity
 
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Weather Forecast API

Posted on by Administrator Posted in A Level Concepts, Computer Science, JSON, Python - Advanced, Python Challenges

weather-iconsThe aim of this challenge is to write a computer program to display a 5-day weather forecast for a specific location chosen by the end-user.

You program will:

  • retrieve the city from the end user (input),
  • Use the Open Weather Map API to retrieve an up-to-date weather forecast for this city,
  • parse the retrieved information,
  • display the 5-day weather forecast for the selected location. (output)

In order to do so you will use the Open Weather Map API: https://openweathermap.org/api

You will need to sign in to get an API key.

Then you will be able to make the relevant API calls such as the one described in the tabs below.

JSON or XML?


JSON and XML are two widely used choices for open data interchange.

Initially, XML (eXtensible Markup Language) was the only choice for open data interchange. But over the years the world of open data sharing has evolved a lot. The more lightweight JSON (JavaScript Object Notation) has become a popular alternative to XML for various reasons, one of the main reason being that JSON is more compact, faster and lighter (in terms of memory requirements) to process/parse.

The Open Weather Map API let you choose the format of the data to be retrieved using either the JSON format or XML format. (See examples provided below). So you will have to decide which format to use.

You can read and complete the following two challenges which demonstrate how to use a JSON API using Python code. These challenges will help you find out how to make an API call and how to parse a basic JSON data set.

Open Weather Map API


Here are a few examples of how to use the Open Weather Map API to retrieve JSON or XML data sets.

Current Weather - JSONCurrent Weather - XML5 Day Weather Forecast - JSON5 Day Weather Forecast - XML
API Call

https://api.openweathermap.org/data/2.5/weather?q=London&appid=...

Output

{
"coord":{"lon":-0.13,"lat":51.51},
"weather":[{"id":300,"main":"Drizzle","description":"light intensity drizzle","icon":"09d"}],
"base":"stations",
"main":{"temp":280.32,"pressure":1012,"humidity":81,"temp_min":279.15,"temp_max":281.15},
"visibility":10000,
"wind":{"speed":4.1,"deg":80},
"clouds":{"all":90},
"dt":1485789600,
"sys":{"type":1,"id":5091,"message":0.0103,"country":"GB","sunrise":1485762037,"sunset":1485794875},
"id":2643743,
"name":"London",
"cod":200
}

Find out more about date and time format using a UNIX Timestamp.

API Call

https://api.openweathermap.org/data/2.5/weather?q=London&mode=xml&appid=...

Output

<current>
<city id="2643743" name="London">
<coord lon="-0.13" lat="51.51"/>
<country>GB</country>
<sun rise="2017-01-30T07:40:36" set="2017-01-30T16:47:56"/>
</city>
<temperature value="280.15" min="278.15" max="281.15" unit="kelvin"/>
<humidity value="81" unit="%"/>
<pressure value="1012" unit="hPa"/>
<wind>
<speed value="4.6" name="Gentle Breeze"/>
<gusts/>
<direction value="90" code="E" name="East"/>
</wind>
<clouds value="90" name="overcast clouds"/>
<visibility value="10000"/>
<precipitation mode="no"/>
<weather number="701" value="mist" icon="50d"/>
<lastupdate value="2017-01-30T15:50:00"/>
</current>

Find out more about date and time format using a UNIX Timestamp.

This API generates the a weather forecast report for the next 5 days with a 3 hour interval.
API Call

https://api.openweathermap.org/data/2.5/forecast?q=Moscow&appid=...

Output

{
"cod":"200",
"message":0.0036,
"cnt":40,
"list":[{"dt":1485799200,"main":{"temp":261.45,"temp_min":259.086,"temp_max":261.45,"pressure":1023.48,"sea_level":1045.39,"grnd_level":1023.48,"humidity":79,"temp_kf":2.37},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"02n"}],"clouds":{"all":8},"wind":{"speed":4.77,"deg":232.505},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-01-30 18:00:00"},
{"dt":1485810000,"main":{"temp":261.41,"temp_min":259.638,"temp_max":261.41,"pressure":1022.41,"sea_level":1044.35,"grnd_level":1022.41,"humidity":76,"temp_kf":1.78},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01n"}],"clouds":{"all":32},"wind":{"speed":4.76,"deg":240.503},"snow":{"3h":0.011},"sys":{"pod":"n"},"dt_txt":"2017-01-30 21:00:00"},
{"dt":1485820800,"main":{"temp":261.76,"temp_min":260.571,"temp_max":261.76,"pressure":1021.34,"sea_level":1043.21,"grnd_level":1021.34,"humidity":84,"temp_kf":1.18},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":68},"wind":{"speed":4.71,"deg":243},"snow":{"3h":0.058},"sys":{"pod":"n"},"dt_txt":"2017-01-31 00:00:00"},
{"dt":1485831600,"main":{"temp":261.46,"temp_min":260.865,"temp_max":261.46,"pressure":1019.95,"sea_level":1041.79,"grnd_level":1019.95,"humidity":82,"temp_kf":0.59},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":68},"wind":{"speed":4.46,"deg":244.5},"snow":{"3h":0.05225},"sys":{"pod":"n"},"dt_txt":"2017-01-31 03:00:00"},
{"dt":1485842400,"main":{"temp":260.981,"temp_min":260.981,"temp_max":260.981,"pressure":1018.96,"sea_level":1040.84,"grnd_level":1018.96,"humidity":81,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":80},"wind":{"speed":4.21,"deg":245.005},"snow":{"3h":0.19625},"sys":{"pod":"d"},"dt_txt":"2017-01-31 06:00:00"},
{"dt":1485853200,"main":{"temp":262.308,"temp_min":262.308,"temp_max":262.308,"pressure":1018.1,"sea_level":1039.77,"grnd_level":1018.1,"humidity":91,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":88},"wind":{"speed":4.1,"deg":249.006},"snow":{"3h":0.535},"sys":{"pod":"d"},"dt_txt":"2017-01-31 09:00:00"},
{"dt":1485864000,"main":{"temp":263.76,"temp_min":263.76,"temp_max":263.76,"pressure":1016.86,"sea_level":1038.4,"grnd_level":1016.86,"humidity":87,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":68},"wind":{"speed":3.87,"deg":254.5},"snow":{"3h":0.21},"sys":{"pod":"d"},"dt_txt":"2017-01-31 12:00:00"},
{"dt":1485874800,"main":{"temp":264.182,"temp_min":264.182,"temp_max":264.182,"pressure":1016.19,"sea_level":1037.77,"grnd_level":1016.19,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":76},"wind":{"speed":3.67,"deg":257.001},"snow":{"3h":0.1375},"sys":{"pod":"n"},"dt_txt":"2017-01-31 15:00:00"},
{"dt":1485885600,"main":{"temp":264.67,"temp_min":264.67,"temp_max":264.67,"pressure":1015.32,"sea_level":1036.94,"grnd_level":1015.32,"humidity":86,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":88},"wind":{"speed":3.61,"deg":262.503},"snow":{"3h":0.1425},"sys":{"pod":"n"},"dt_txt":"2017-01-31 18:00:00"},
{"dt":1485896400,"main":{"temp":265.436,"temp_min":265.436,"temp_max":265.436,"pressure":1014.27,"sea_level":1035.76,"grnd_level":1014.27,"humidity":90,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":80},"wind":{"speed":3.67,"deg":266.5},"snow":{"3h":0.1625},"sys":{"pod":"n"},"dt_txt":"2017-01-31 21:00:00"},
{"dt":1485907200,"main":{"temp":266.104,"temp_min":266.104,"temp_max":266.104,"pressure":1013.1,"sea_level":1034.62,"grnd_level":1013.1,"humidity":90,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":80},"wind":{"speed":3.81,"deg":269.004},"snow":{"3h":0.1025},"sys":{"pod":"n"},"dt_txt":"2017-02-01 00:00:00"},
{"dt":1485918000,"main":{"temp":266.904,"temp_min":266.904,"temp_max":266.904,"pressure":1011.96,"sea_level":1033.47,"grnd_level":1011.96,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":76},"wind":{"speed":4.26,"deg":274.002},"snow":{"3h":0.12},"sys":{"pod":"n"},"dt_txt":"2017-02-01 03:00:00"},
{"dt":1485928800,"main":{"temp":268.102,"temp_min":268.102,"temp_max":268.102,"pressure":1011.23,"sea_level":1032.62,"grnd_level":1011.23,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":76},"wind":{"speed":4.4,"deg":283.501},"snow":{"3h":0.13},"sys":{"pod":"d"},"dt_txt":"2017-02-01 06:00:00"},
{"dt":1485939600,"main":{"temp":270.269,"temp_min":270.269,"temp_max":270.269,"pressure":1010.85,"sea_level":1032.1,"grnd_level":1010.85,"humidity":92,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":64},"wind":{"speed":4.53,"deg":297.5},"snow":{"3h":0.1875},"sys":{"pod":"d"},"dt_txt":"2017-02-01 09:00:00"},
{"dt":1485950400,"main":{"temp":270.585,"temp_min":270.585,"temp_max":270.585,"pressure":1010.49,"sea_level":1031.65,"grnd_level":1010.49,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":76},"wind":{"speed":4.31,"deg":302.004},"snow":{"3h":0.065},"sys":{"pod":"d"},"dt_txt":"2017-02-01 12:00:00"},
{"dt":1485961200,"main":{"temp":269.661,"temp_min":269.661,"temp_max":269.661,"pressure":1010.22,"sea_level":1031.49,"grnd_level":1010.22,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":68},"wind":{"speed":4.91,"deg":296.5},"snow":{"3h":0.0825},"sys":{"pod":"n"},"dt_txt":"2017-02-01 15:00:00"},
{"dt":1485972000,"main":{"temp":269.155,"temp_min":269.155,"temp_max":269.155,"pressure":1009.95,"sea_level":1031.3,"grnd_level":1009.95,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":80},"wind":{"speed":5.7,"deg":310.501},"snow":{"3h":0.11},"sys":{"pod":"n"},"dt_txt":"2017-02-01 18:00:00"},
{"dt":1485982800,"main":{"temp":268.056,"temp_min":268.056,"temp_max":268.056,"pressure":1011.21,"sea_level":1032.49,"grnd_level":1011.21,"humidity":89,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":68},"wind":{"speed":5.56,"deg":333},"snow":{"3h":0.225},"sys":{"pod":"n"},"dt_txt":"2017-02-01 21:00:00"},
{"dt":1485993600,"main":{"temp":265.803,"temp_min":265.803,"temp_max":265.803,"pressure":1013.79,"sea_level":1035.06,"grnd_level":1013.79,"humidity":83,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13n"}],"clouds":{"all":8},"wind":{"speed":4.8,"deg":355.004},"snow":{"3h":0.03},"sys":{"pod":"n"},"dt_txt":"2017-02-02 00:00:00"},
{"dt":1486004400,"main":{"temp":263.381,"temp_min":263.381,"temp_max":263.381,"pressure":1015.66,"sea_level":1037.16,"grnd_level":1015.66,"humidity":84,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01n"}],"clouds":{"all":0},"wind":{"speed":4.2,"deg":348.503},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-02 03:00:00"},
{"dt":1486015200,"main":{"temp":261.85,"temp_min":261.85,"temp_max":261.85,"pressure":1017.63,"sea_level":1039.22,"grnd_level":1017.63,"humidity":76,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01d"}],"clouds":{"all":0},"wind":{"speed":3.81,"deg":345.502},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-02 06:00:00"},
{"dt":1486026000,"main":{"temp":263.455,"temp_min":263.455,"temp_max":263.455,"pressure":1019.32,"sea_level":1040.84,"grnd_level":1019.32,"humidity":84,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01d"}],"clouds":{"all":0},"wind":{"speed":3.06,"deg":344.004},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-02 09:00:00"},
{"dt":1486036800,"main":{"temp":264.015,"temp_min":264.015,"temp_max":264.015,"pressure":1020.41,"sea_level":1041.88,"grnd_level":1020.41,"humidity":85,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01d"}],"clouds":{"all":0},"wind":{"speed":2.52,"deg":334.501},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-02 12:00:00"},
{"dt":1486047600,"main":{"temp":259.684,"temp_min":259.684,"temp_max":259.684,"pressure":1021.52,"sea_level":1043.21,"grnd_level":1021.52,"humidity":76,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01n"}],"clouds":{"all":0},"wind":{"speed":2.48,"deg":320.501},"snow":{"3h":0.0024999999999999},"sys":{"pod":"n"},"dt_txt":"2017-02-02 15:00:00"},
{"dt":1486058400,"main":{"temp":255.188,"temp_min":255.188,"temp_max":255.188,"pressure":1022.09,"sea_level":1044.09,"grnd_level":1022.09,"humidity":66,"temp_kf":0},"weather":[{"id":801,"main":"Clouds","description":"few clouds","icon":"02n"}],"clouds":{"all":24},"wind":{"speed":1.23,"deg":283.003},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-02 18:00:00"},
{"dt":1486069200,"main":{"temp":255.594,"temp_min":255.594,"temp_max":255.594,"pressure":1022.03,"sea_level":1044.12,"grnd_level":1022.03,"humidity":64,"temp_kf":0},"weather":[{"id":802,"main":"Clouds","description":"scattered clouds","icon":"03n"}],"clouds":{"all":48},"wind":{"speed":1.22,"deg":244.502},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-02 21:00:00"},
{"dt":1486080000,"main":{"temp":256.96,"temp_min":256.96,"temp_max":256.96,"pressure":1021.8,"sea_level":1043.77,"grnd_level":1021.8,"humidity":66,"temp_kf":0},"weather":[{"id":802,"main":"Clouds","description":"scattered clouds","icon":"03n"}],"clouds":{"all":44},"wind":{"speed":1.23,"deg":237.506},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-03 00:00:00"},
{"dt":1486090800,"main":{"temp":258.109,"temp_min":258.109,"temp_max":258.109,"pressure":1020.97,"sea_level":1042.99,"grnd_level":1020.97,"humidity":77,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04n"}],"clouds":{"all":80},"wind":{"speed":1.21,"deg":234.502},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-03 03:00:00"},
{"dt":1486101600,"main":{"temp":259.533,"temp_min":259.533,"temp_max":259.533,"pressure":1020.56,"sea_level":1042.53,"grnd_level":1020.56,"humidity":76,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04d"}],"clouds":{"all":68},"wind":{"speed":1.21,"deg":229.509},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-03 06:00:00"},
{"dt":1486112400,"main":{"temp":263.438,"temp_min":263.438,"temp_max":263.438,"pressure":1020.46,"sea_level":1042.15,"grnd_level":1020.46,"humidity":84,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04d"}],"clouds":{"all":56},"wind":{"speed":1.51,"deg":242.503},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-03 09:00:00"},
{"dt":1486123200,"main":{"temp":264.228,"temp_min":264.228,"temp_max":264.228,"pressure":1019.58,"sea_level":1041.24,"grnd_level":1019.58,"humidity":89,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04d"}],"clouds":{"all":56},"wind":{"speed":1.58,"deg":242.503},"snow":{},"sys":{"pod":"d"},"dt_txt":"2017-02-03 12:00:00"},
{"dt":1486134000,"main":{"temp":261.153,"temp_min":261.153,"temp_max":261.153,"pressure":1019.63,"sea_level":1041.42,"grnd_level":1019.63,"humidity":80,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01n"}],"clouds":{"all":76},"wind":{"speed":1.21,"deg":198.501},"snow":{"3h":0.0049999999999999},"sys":{"pod":"n"},"dt_txt":"2017-02-03 15:00:00"},
{"dt":1486144800,"main":{"temp":258.818,"temp_min":258.818,"temp_max":258.818,"pressure":1020.18,"sea_level":1042.03,"grnd_level":1020.18,"humidity":73,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04n"}],"clouds":{"all":64},"wind":{"speed":1.21,"deg":209.002},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-03 18:00:00"},
{"dt":1486155600,"main":{"temp":257.218,"temp_min":257.218,"temp_max":257.218,"pressure":1020.43,"sea_level":1042.38,"grnd_level":1020.43,"humidity":65,"temp_kf":0},"weather":[{"id":802,"main":"Clouds","description":"scattered clouds","icon":"03n"}],"clouds":{"all":44},"wind":{"speed":1.17,"deg":194.501},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-03 21:00:00"},
{"dt":1486166400,"main":{"temp":255.782,"temp_min":255.782,"temp_max":255.782,"pressure":1020.57,"sea_level":1042.75,"grnd_level":1020.57,"humidity":73,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04n"}],"clouds":{"all":56},"wind":{"speed":1.21,"deg":175.001},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-04 00:00:00"},
{"dt":1486177200,"main":{"temp":254.819,"temp_min":254.819,"temp_max":254.819,"pressure":1020.99,"sea_level":1043.11,"grnd_level":1020.99,"humidity":68,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01n"}],"clouds":{"all":44},"wind":{"speed":1.22,"deg":122.001},"snow":{"3h":0.0049999999999999},"sys":{"pod":"n"},"dt_txt":"2017-02-04 03:00:00"},
{"dt":1486188000,"main":{"temp":257.488,"temp_min":257.488,"temp_max":257.488,"pressure":1021.31,"sea_level":1043.48,"grnd_level":1021.31,"humidity":63,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":68},"wind":{"speed":2.13,"deg":155.501},"snow":{"3h":0.04},"sys":{"pod":"d"},"dt_txt":"2017-02-04 06:00:00"},
{"dt":1486198800,"main":{"temp":259.827,"temp_min":259.827,"temp_max":259.827,"pressure":1021.81,"sea_level":1043.67,"grnd_level":1021.81,"humidity":90,"temp_kf":0},"weather":[{"id":600,"main":"Snow","description":"light snow","icon":"13d"}],"clouds":{"all":68},"wind":{"speed":2.07,"deg":170.005},"snow":{"3h":0.03},"sys":{"pod":"d"},"dt_txt":"2017-02-04 09:00:00"},
{"dt":1486209600,"main":{"temp":261.256,"temp_min":261.256,"temp_max":261.256,"pressure":1021.31,"sea_level":1043.05,"grnd_level":1021.31,"humidity":86,"temp_kf":0},"weather":[{"id":800,"main":"Clear","description":"clear sky","icon":"01d"}],"clouds":{"all":76},"wind":{"speed":2.32,"deg":175.001},"snow":{"3h":0.0049999999999999},"sys":{"pod":"d"},"dt_txt":"2017-02-04 12:00:00"},
{"dt":1486220400,"main":{"temp":260.26,"temp_min":260.26,"temp_max":260.26,"pressure":1021,"sea_level":1042.96,"grnd_level":1021,"humidity":86,"temp_kf":0},"weather":[{"id":803,"main":"Clouds","description":"broken clouds","icon":"04n"}],"clouds":{"all":56},"wind":{"speed":2.47,"deg":180.501},"snow":{},"sys":{"pod":"n"},"dt_txt":"2017-02-04 15:00:00"}],"city":{"id":524901,"name":"Moscow","coord":{"lat":55.7522,"lon":37.6156},"country":"none"}}

Find out more about date and time format using a UNIX Timestamp.

This API generates the a weather forecast report for the next 5 days with a 3 hour interval.
API Call

https://api.openweathermap.org/data/2.5/forecast?q=Moscow&mode=xml&appid=...

Output

<weatherdata>
<location>
<name>London</name>
<type/>
<country>US</country>
<timezone/>
<location altitude="0" latitude="39.8865" longitude="-83.4483" geobase="geonames" geobaseid="4517009"/>
</location>
<credit/>
<meta>
<lastupdate/>
<calctime>0.0028</calctime>
<nextupdate/>
</meta>
<sun rise="2017-03-03T12:03:03" set="2017-03-03T23:28:37"/>
<forecast>
<time from="2017-03-03T06:00:00" to="2017-03-03T09:00:00">
<symbol number="600" name="light snow" var="13n"/>
<precipitation unit="3h" value="0.03125" type="snow"/>
<windDirection deg="303.004" code="WNW" name="West-northwest"/>
<windSpeed mps="2.29" name="Light breeze"/>
<temperature unit="kelvin" value="269.91" min="269.91" max="270.877"/>
<pressure unit="hPa" value="1005.61"/>
<humidity value="93" unit="%"/>
<clouds value="scattered clouds" all="32" unit="%"/>
</time>
<time from="2017-03-03T09:00:00" to="2017-03-03T12:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation unit="3h" value="0.0225" type="snow"/>
<windDirection deg="293.503" code="WNW" name="West-northwest"/>
<windSpeed mps="3.55" name="Gentle Breeze"/>
<temperature unit="kelvin" value="269.23" min="269.23" max="269.957"/>
<pressure unit="hPa" value="1007.39"/>
<humidity value="90" unit="%"/>
<clouds value="scattered clouds" all="36" unit="%"/>
</time>
<time from="2017-03-03T12:00:00" to="2017-03-03T15:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation unit="3h" value="0.0125" type="snow"/>
<windDirection deg="301.5" code="WNW" name="West-northwest"/>
<windSpeed mps="6.26" name="Moderate breeze"/>
<temperature unit="kelvin" value="270.93" min="270.93" max="271.416"/>
<pressure unit="hPa" value="1009.81"/>
<humidity value="100" unit="%"/>
<clouds value="few clouds" all="24" unit="%"/>
</time>
<time from="2017-03-03T15:00:00" to="2017-03-03T18:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation unit="3h" value="0.0025" type="snow"/>
<windDirection deg="302.005" code="WNW" name="West-northwest"/>
<windSpeed mps="7.31" name="Moderate breeze"/>
<temperature unit="kelvin" value="272.25" min="272.25" max="272.491"/>
<pressure unit="hPa" value="1011.51"/>
<humidity value="92" unit="%"/>
<clouds value="scattered clouds" all="32" unit="%"/>
</time>
<time from="2017-03-03T18:00:00" to="2017-03-03T21:00:00">
<symbol number="800" name="clear sky" var="02d"/>
<precipitation/>
<windDirection deg="298.5" code="WNW" name="West-northwest"/>
<windSpeed mps="6.61" name="Moderate breeze"/>
<temperature unit="kelvin" value="272.817" min="272.817" max="272.817"/>
<pressure unit="hPa" value="1012.1"/>
<humidity value="79" unit="%"/>
<clouds value="clear sky" all="8" unit="%"/>
</time>
<time from="2017-03-03T21:00:00" to="2017-03-04T00:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="294.502" code="WNW" name="West-northwest"/>
<windSpeed mps="4.26" name="Gentle Breeze"/>
<temperature unit="kelvin" value="270.438" min="270.438" max="270.438"/>
<pressure unit="hPa" value="1012.92"/>
<humidity value="65" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-04T00:00:00" to="2017-03-04T03:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="292" code="WNW" name="West-northwest"/>
<windSpeed mps="2.66" name="Light breeze"/>
<temperature unit="kelvin" value="268.016" min="268.016" max="268.016"/>
<pressure unit="hPa" value="1013.34"/>
<humidity value="66" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-04T03:00:00" to="2017-03-04T06:00:00">
<symbol number="801" name="few clouds" var="02n"/>
<precipitation/>
<windDirection deg="290.001" code="WNW" name="West-northwest"/>
<windSpeed mps="1.42" name="Calm"/>
<temperature unit="kelvin" value="267.082" min="267.082" max="267.082"/>
<pressure unit="hPa" value="1013.88"/>
<humidity value="71" unit="%"/>
<clouds value="few clouds" all="20" unit="%"/>
</time>
<time from="2017-03-04T06:00:00" to="2017-03-04T09:00:00">
<symbol number="802" name="scattered clouds" var="03n"/>
<precipitation/>
<windDirection deg="344.003" code="NNW" name="North-northeast"/>
<windSpeed mps="1.32" name="Calm"/>
<temperature unit="kelvin" value="268.057" min="268.057" max="268.057"/>
<pressure unit="hPa" value="1013.66"/>
<humidity value="70" unit="%"/>
<clouds value="scattered clouds" all="44" unit="%"/>
</time>
<time from="2017-03-04T09:00:00" to="2017-03-04T12:00:00">
<symbol number="600" name="light snow" var="13n"/>
<precipitation unit="3h" value="0.13" type="snow"/>
<windDirection deg="143.001" code="SE" name="SouthEast"/>
<windSpeed mps="1.91" name="Light breeze"/>
<temperature unit="kelvin" value="268.687" min="268.687" max="268.687"/>
<pressure unit="hPa" value="1014.24"/>
<humidity value="78" unit="%"/>
<clouds value="broken clouds" all="80" unit="%"/>
</time>
<time from="2017-03-04T12:00:00" to="2017-03-04T15:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="136.502" code="SE" name="SouthEast"/>
<windSpeed mps="3.16" name="Light breeze"/>
<temperature unit="kelvin" value="270.296" min="270.296" max="270.296"/>
<pressure unit="hPa" value="1014.65"/>
<humidity value="85" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-04T15:00:00" to="2017-03-04T18:00:00">
<symbol number="600" name="light snow" var="13d"/>
<precipitation unit="3h" value="0.835" type="snow"/>
<windDirection deg="130.504" code="SE" name="SouthEast"/>
<windSpeed mps="4.16" name="Gentle Breeze"/>
<temperature unit="kelvin" value="273.066" min="273.066" max="273.066"/>
<pressure unit="hPa" value="1012.99"/>
<humidity value="88" unit="%"/>
<clouds value="few clouds" all="20" unit="%"/>
</time>
<time from="2017-03-04T18:00:00" to="2017-03-04T21:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation/>
<windDirection deg="143.5" code="SE" name="SouthEast"/>
<windSpeed mps="2.77" name="Light breeze"/>
<temperature unit="kelvin" value="276.767" min="276.767" max="276.767"/>
<pressure unit="hPa" value="1011.06"/>
<humidity value="84" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-04T21:00:00" to="2017-03-05T00:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="89.5023" code="E" name="East"/>
<windSpeed mps="3.73" name="Gentle Breeze"/>
<temperature unit="kelvin" value="274.492" min="274.492" max="274.492"/>
<pressure unit="hPa" value="1010.42"/>
<humidity value="70" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T00:00:00" to="2017-03-05T03:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="97.5005" code="E" name="East"/>
<windSpeed mps="4.97" name="Gentle Breeze"/>
<temperature unit="kelvin" value="271.485" min="271.485" max="271.485"/>
<pressure unit="hPa" value="1011.31"/>
<humidity value="72" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T03:00:00" to="2017-03-05T06:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="107.002" code="ESE" name="East-southeast"/>
<windSpeed mps="4.67" name="Gentle Breeze"/>
<temperature unit="kelvin" value="270.202" min="270.202" max="270.202"/>
<pressure unit="hPa" value="1011.33"/>
<humidity value="72" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T06:00:00" to="2017-03-05T09:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="116.504" code="ESE" name="East-southeast"/>
<windSpeed mps="4.57" name="Gentle Breeze"/>
<temperature unit="kelvin" value="270.002" min="270.002" max="270.002"/>
<pressure unit="hPa" value="1010.53"/>
<humidity value="77" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T09:00:00" to="2017-03-05T12:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation/>
<windDirection deg="127.003" code="SE" name="SouthEast"/>
<windSpeed mps="4.56" name="Gentle Breeze"/>
<temperature unit="kelvin" value="270.017" min="270.017" max="270.017"/>
<pressure unit="hPa" value="1010.21"/>
<humidity value="73" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T12:00:00" to="2017-03-05T15:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation/>
<windDirection deg="148.002" code="SSE" name="South-southeast"/>
<windSpeed mps="4.68" name="Gentle Breeze"/>
<temperature unit="kelvin" value="276.199" min="276.199" max="276.199"/>
<pressure unit="hPa" value="1010.18"/>
<humidity value="81" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T15:00:00" to="2017-03-05T18:00:00">
<symbol number="800" name="clear sky" var="01d"/>
<precipitation/>
<windDirection deg="174.5" code="S" name="South"/>
<windSpeed mps="4.72" name="Gentle Breeze"/>
<temperature unit="kelvin" value="284.031" min="284.031" max="284.031"/>
<pressure unit="hPa" value="1008.28"/>
<humidity value="80" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-05T18:00:00" to="2017-03-05T21:00:00">
<symbol number="802" name="scattered clouds" var="03d"/>
<precipitation/>
<windDirection deg="207.501" code="SSW" name="South-southwest"/>
<windSpeed mps="5.02" name="Gentle Breeze"/>
<temperature unit="kelvin" value="286.276" min="286.276" max="286.276"/>
<pressure unit="hPa" value="1005.92"/>
<humidity value="71" unit="%"/>
<clouds value="scattered clouds" all="32" unit="%"/>
</time>
<time from="2017-03-05T21:00:00" to="2017-03-06T00:00:00">
<symbol number="802" name="scattered clouds" var="03n"/>
<precipitation/>
<windDirection deg="200.003" code="SSW" name="South-southwest"/>
<windSpeed mps="4.81" name="Gentle Breeze"/>
<temperature unit="kelvin" value="282.168" min="282.168" max="282.168"/>
<pressure unit="hPa" value="1005.45"/>
<humidity value="64" unit="%"/>
<clouds value="scattered clouds" all="44" unit="%"/>
</time>
<time from="2017-03-06T00:00:00" to="2017-03-06T03:00:00">
<symbol number="800" name="clear sky" var="01n"/>
<precipitation/>
<windDirection deg="201.001" code="SSW" name="South-southwest"/>
<windSpeed mps="5.37" name="Gentle Breeze"/>
<temperature unit="kelvin" value="279.202" min="279.202" max="279.202"/>
<pressure unit="hPa" value="1005.45"/>
<humidity value="68" unit="%"/>
<clouds value="clear sky" all="0" unit="%"/>
</time>
<time from="2017-03-06T03:00:00" to="2017-03-06T06:00:00">
<symbol number="802" name="scattered clouds" var="03n"/>
<precipitation/>
<windDirection deg="201.001" code="SSW" name="South-southwest"/>
<windSpeed mps="5.21" name="Gentle Breeze"/>
<temperature unit="kelvin" value="278.025" min="278.025" max="278.025"/>
<pressure unit="hPa" value="1005.18"/>
<humidity value="72" unit="%"/>
<clouds value="scattered clouds" all="44" unit="%"/>
</time>
<time from="2017-03-06T06:00:00" to="2017-03-06T09:00:00">
<symbol number="803" name="broken clouds" var="04n"/>
<precipitation/>
<windDirection deg="203.503" code="SSW" name="South-southwest"/>
<windSpeed mps="5.42" name=""/>
<temperature unit="kelvin" value="278.123" min="278.123" max="278.123"/>
<pressure unit="hPa" value="1004.75"/>
<humidity value="74" unit="%"/>
<clouds value="broken clouds" all="76" unit="%"/>
</time>
<time from="2017-03-06T09:00:00" to="2017-03-06T12:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="202.003" code="SSW" name="South-southwest"/>
<windSpeed mps="5.41" name=""/>
<temperature unit="kelvin" value="278.704" min="278.704" max="278.704"/>
<pressure unit="hPa" value="1004.96"/>
<humidity value="74" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-06T12:00:00" to="2017-03-06T15:00:00">
<symbol number="802" name="scattered clouds" var="03d"/>
<precipitation/>
<windDirection deg="193.502" code="SSW" name="South-southwest"/>
<windSpeed mps="6.01" name="Moderate breeze"/>
<temperature unit="kelvin" value="282.402" min="282.402" max="282.402"/>
<pressure unit="hPa" value="1004.49"/>
<humidity value="74" unit="%"/>
<clouds value="scattered clouds" all="48" unit="%"/>
</time>
<time from="2017-03-06T15:00:00" to="2017-03-06T18:00:00">
<symbol number="500" name="light rain" var="10d"/>
<precipitation unit="3h" value="0.02" type="rain"/>
<windDirection deg="203" code="SSW" name="South-southwest"/>
<windSpeed mps="9.16" name="Fresh Breeze"/>
<temperature unit="kelvin" value="287.36" min="287.36" max="287.36"/>
<pressure unit="hPa" value="1002.21"/>
<humidity value="76" unit="%"/>
<clouds value="few clouds" all="24" unit="%"/>
</time>
<time from="2017-03-06T18:00:00" to="2017-03-06T21:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="202.501" code="SSW" name="South-southwest"/>
<windSpeed mps="8.72" name="Fresh Breeze"/>
<temperature unit="kelvin" value="288.081" min="288.081" max="288.081"/>
<pressure unit="hPa" value="1000.08"/>
<humidity value="74" unit="%"/>
<clouds value="overcast clouds" all="88" unit="%"/>
</time>
<time from="2017-03-06T21:00:00" to="2017-03-07T00:00:00">
<symbol number="500" name="light rain" var="10n"/>
<precipitation unit="3h" value="0.51" type="rain"/>
<windDirection deg="187.001" code="S" name="South"/>
<windSpeed mps="7.01" name="Moderate breeze"/>
<temperature unit="kelvin" value="286.823" min="286.823" max="286.823"/>
<pressure unit="hPa" value="999.09"/>
<humidity value="76" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T00:00:00" to="2017-03-07T03:00:00">
<symbol number="804" name="overcast clouds" var="04n"/>
<precipitation/>
<windDirection deg="192" code="SSW" name="South-southwest"/>
<windSpeed mps="9.06" name="Fresh Breeze"/>
<temperature unit="kelvin" value="286.627" min="286.627" max="286.627"/>
<pressure unit="hPa" value="998.08"/>
<humidity value="72" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T03:00:00" to="2017-03-07T06:00:00">
<symbol number="804" name="overcast clouds" var="04n"/>
<precipitation/>
<windDirection deg="200.502" code="SSW" name="South-southwest"/>
<windSpeed mps="10.06" name="Fresh Breeze"/>
<temperature unit="kelvin" value="286.38" min="286.38" max="286.38"/>
<pressure unit="hPa" value="997.51"/>
<humidity value="76" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T06:00:00" to="2017-03-07T09:00:00">
<symbol number="804" name="overcast clouds" var="04n"/>
<precipitation/>
<windDirection deg="204.501" code="SSW" name="South-southwest"/>
<windSpeed mps="9.36" name="Fresh Breeze"/>
<temperature unit="kelvin" value="286.222" min="286.222" max="286.222"/>
<pressure unit="hPa" value="996.68"/>
<humidity value="88" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T09:00:00" to="2017-03-07T12:00:00">
<symbol number="501" name="moderate rain" var="10d"/>
<precipitation unit="3h" value="3.65" type="rain"/>
<windDirection deg="201.5" code="SSW" name="South-southwest"/>
<windSpeed mps="8.81" name="Fresh Breeze"/>
<temperature unit="kelvin" value="286.035" min="286.035" max="286.035"/>
<pressure unit="hPa" value="996.61"/>
<humidity value="95" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T12:00:00" to="2017-03-07T15:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="202.001" code="SSW" name="South-southwest"/>
<windSpeed mps="8.87" name="Fresh Breeze"/>
<temperature unit="kelvin" value="286.965" min="286.965" max="286.965"/>
<pressure unit="hPa" value="995.94"/>
<humidity value="96" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T15:00:00" to="2017-03-07T18:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="211.507" code="SSW" name="South-southwest"/>
<windSpeed mps="7.86" name="Moderate breeze"/>
<temperature unit="kelvin" value="288.163" min="288.163" max="288.163"/>
<pressure unit="hPa" value="994.32"/>
<humidity value="98" unit="%"/>
<clouds value="overcast clouds" all="92" unit="%"/>
</time>
<time from="2017-03-07T18:00:00" to="2017-03-07T21:00:00">
<symbol number="804" name="overcast clouds" var="04d"/>
<precipitation/>
<windDirection deg="229.5" code="SW" name="Southwest"/>
<windSpeed mps="7.46" name="Moderate breeze"/>
<temperature unit="kelvin" value="288.788" min="288.788" max="288.788"/>
<pressure unit="hPa" value="993.15"/>
<humidity value="100" unit="%"/>
<clouds value="overcast clouds" all="88" unit="%"/>
</time>
</forecast>
</weatherdata>

Find out more about date and time format using a UNIX Timestamp.

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