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Python Datetime - Exercises, Practice, Solution

Python datetime [63 exercises with solution]

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1. Write a Python script to display the various Date Time formats - Go to the editor
a) Current date and time
b) Current year
c) Month of year
d) Week number of the year
e) Weekday of the week
f) Day of year
g) Day of the month
h) Day of week

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2. Write a Python program to determine whether a given year is a leap year. Go to the editor

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3. Write a Python program to convert a string to datetime. Go to the editor
Sample String : Jan 1 2014 2:43PM
Expected Output : 2014-07-01 14:43:00

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4. Write a Python program to get the current time in Python. Go to the editor
Sample Format :  13:19:49.078205

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5. Write a Python program to subtract five days from current date. Go to the editor
Sample Date :
Current Date : 2015-06-22
5 days before Current Date : 2015-06-17

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6. Write a Python program to convert unix timestamp string to readable date. Go to the editor
Sample Unix timestamp string : 1284105682
Expected Output : 2010-09-10 13:31:22

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7. Write a Python program to print yesterday, today, tomorrow. Go to the editor

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8. Write a Python program to convert the date to datetime (midnight of the date) in Python. Go to the editor
Sample Output : 2015-06-22 00:00:00

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9. Write a Python program to print next 5 days starting from today. Go to the editor

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10. Write a Python program to add 5 seconds with the current time. Go to the editor
Sample Data :
13:28:32.953088
13:28:37.953088

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11. Write a Python program to convert Year/Month/Day to Day of Year in Python. Go to the editor

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12. Write a Python program to get current time in milliseconds in Python Go to the editor

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13. Write a Python program to get week number. Go to the editor
Sample Date : 2015, 6, 16
Expected Output : 25

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14. Write a Python program to find the date of the first Monday of a given week. Go to the editor
Sample Year and week : 2015, 50
Expected Output : Mon Dec 14 00:00:00 2015

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15. Write a Python program to select all the Sundays of a specified year. Go to the editor
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16. Write a Python program to add year(s) with a given date and display the new date. Go to the editor

Sample Data : (addYears is the user defined function name)
print(addYears(datetime.date(2015,1,1), -1))
print(addYears(datetime.date(2015,1,1), 0))
print(addYears(datetime.date(2015,1,1), 2))
print(addYears(datetime.date(2000,2,29),1))

Expected Output :
2014-01-01
2015-01-01
2017-01-01
2001-03-01

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17. Write a Python program to drop microseconds from datetime. Go to the editor

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18. Write a Python program to get days between two dates. Go to the editor
Sample Dates : 2000,2,28, 2001,2,28
Expected Output : 366 days, 0:00:00

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19. Write a Python program to get the date of the last Tuesday. Go to the editor

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20. Write a Python program to test the third Tuesday of a month. Go to the editor

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21. Write a Python program to get the last day of a specified year and month. Go to the editor

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22. Write a Python program to get the number of days of a given month and year. Go to the editor

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23. Write a Python program to add a month with a specified date. Go to the editor

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24. Write a Python program to count the number of Monday of the 1st day of the month from 2015 to 2016. Go to the editor

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25. Write a Python program to print a string five times, delay three seconds. Go to the editor

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26. Write a Python program calculates the date six months from the current date using the datetime module. Go to the editor

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27. Write a Python program to create 12 fixed dates from a specified date over a given period. The difference between two dates will be 20. Go to the editor

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28. Write a Python program to get the dates 30 days before and after from the current date. Go to the editor

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29. Write a Python program to get the GMT and local current time. Go to the editor

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30. Write a Python program to convert a date to the timestamp. Go to the editor

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31. Write a Python program to convert a string date to the timestamp. Go to the editor

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32. Write a Python program to calculate a number of days between two dates. Go to the editor

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33. Write a Python program to calculate no of days between two datetimes. Go to the editor

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34. Write a Python program to display the date and time in a human-friendly string. Go to the editor

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35. Write a Python program to convert a date to Unix timestamp. Go to the editor

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36. Write a Python program to calculate two date difference in seconds. Go to the editor

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37. Write a Python program to convert two date difference in days, hours, minutes, seconds. Go to the editor

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38. Write a Python program to get last modified information of a file. Go to the editor

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39. Write a Python program to calculate an age in year. Go to the editor

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40. Write a Python program to get the current date time information. Go to the editor

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41. Write a python program to generate a date and time as a string. Go to the editor

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42. Write a Python program to display formatted text output of a month and start weeks on Sunday. Go to the editor

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43. Write a Python program to print a 3-column calendar for an entire year. Go to the editor

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44. Write a Python program to display a calendar for a locale. Go to the editor

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45. Write a Python program to get the current week. Go to the editor

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46. Write a Python program to create a HTML calendar with data for a specific year and month. Go to the editor

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47. Write a Python program display a list of the dates for the 2nd Saturday of every month for a given year. Go to the editor

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48. Write a Python program to display a simple, formatted calendar of a given year and month. Go to the editor

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49. Write a Python program to convert a string into datetime Go to the editor

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50. Write a Python program to get a list of dates between two dates. Go to the editor

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51. Write a Python program to generate RFC 3339 timestamp. Go to the editor

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52. Write a Python program to get the first and last second. Go to the editor

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53. Write a Python program to validate a Gregorian date. The month is between 1 and 12 inclusive, the day is within the allowed number of days for the given month. Leap year's are taken into consideration. The year is between 1 and 32767 inclusive. Go to the editor

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54. Write a Python program to set the default timezone used by all date/time functions. Go to the editor

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55. The epoch is the point where the time starts, and is platform dependent. For Unix, the epoch is January 1, 1970, 00:00:00 (UTC). Write a Python program to find out what the epoch is on a given platform. Also convert a given time in seconds since the epoch. Go to the editor
Sample Output:
Epoch on a given platform:
time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)
Time in seconds since the epoch:
time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=10, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)

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56. Write a Python program to get time values with components using local time and gmtime. Go to the editor
Sample Output:
localtime:
tm_year : 2021
tm_mon : 4
tm_mday : 13
tm_hour : 11
tm_min : 20
tm_sec : 37
tm_wday : 1
tm_yday : 103
tm_isdst: 0
gmtime:
tm_year : 2021
tm_mon : 4
tm_mday : 13
tm_hour : 11
tm_min : 20
tm_sec : 37
tm_wday : 1
tm_yday : 103
tm_isdst: 0

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57. Write a Python program to get different time values with components timezone, timezone abbreviations, the offset of the local (non-DST) timezone, DST timezone and time of different timezones. Go to the editor
Sample Output:
Default Zone:
TZ : (not set)
Timezone abbreviations: ('UTC', 'UTC')
Timezone : 0 (0.0)
DST timezone 0
Time : 11:30:05 04/13/21 UTC
Pacific/Auckland :
TZ : Pacific/Auckland
Timezone abbreviations: ('NZST', 'NZDT')
Timezone : -43200 (-12.0)
DST timezone 1
Time : 23:30:05 04/13/21 NZST
Europe/Berlin :
TZ : Europe/Berlin
Timezone abbreviations: ('CET', 'CEST')
Timezone : -3600 (-1.0)
DST timezone 1
Time : 13:30:05 04/13/21 CEST
America/Detroit :
TZ : America/Detroit
Timezone abbreviations: ('EST', 'EDT')
Timezone : 18000 (5.0)
DST timezone 1
Time : 07:30:05 04/13/21 EDT
Singapore :
TZ : Singapore
Timezone abbreviations: ('+08', '+08')
Timezone : -28800 (-8.0)
DST timezone 0
Time : 19:30:05 04/13/21 +08

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58. Write a Python program that can suspend execution of a given script a given number of seconds. Go to the editor
Sample Output:
Sorry, Slept for 3 seconds...
Sorry, Slept for 3 seconds...
Sorry, Slept for 3 seconds...
Sorry, Slept for 3 seconds...

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59. Write a Python program to convert a given time in seconds since the epoch to a string representing local time. Go to the editor
Sample Output:
Tue Apr 13 11:51:51 2021
Thu Jun 30 18:36:29 1977

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60. Write a Python program to print simple format of time, full names and the representation format and preferred date time format. Go to the editor
Sample Output:
Simple format of time:
Tue, 13 Apr 2021 12:02:01 + 1010
Full names and the representation:
Tuesday, 04/13/21 April 2021 12:02:01 + 0000
Preferred date time format:
Tue Apr 13 12:02:01 2021
Example 11: 04/13/21, 12:02:01, 21, 2021

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61. Write a Python program that takes a given number of seconds and pass since epoch as an argument. Print structure time in local time. Go to the editor
Sample Output:
Result: time.struct_time(tm_year=1983, tm_mon=2, tm_mday=19, tm_hour=21, tm_min=38, tm_sec=18, tm_wday=5, tm_yday=50, tm_isdst=0)
Year: 1983

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62. Write a Python program that takes a tuple containing 9 elements corresponding to structure time as an argument and returns a string representing it. Go to the editor
Sample Output:
Result: Sun Jan 22 02:34:06 2020
Result: Tue Nov 12 02:54:08 1982

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63. Write a Python program to parse a string representing time and returns the structure time. Go to the editor
Sample Output:
String representing time: 22 January, 2020
time.struct_time(tm_year=2020, tm_mon=1, tm_mday=22, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=22, tm_isdst=-1)
String representing time: 30 Nov 00
time.struct_time(tm_year=2000, tm_mon=11, tm_mday=30, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=335, tm_isdst=-1)
String representing time: 04/11/15 11:55:23
time.struct_time(tm_year=2015, tm_mon=4, tm_mday=11, tm_hour=11, tm_min=55, tm_sec=23, tm_wday=5, tm_yday=101, tm_isdst=-1)
String representing time: 12-11-2019
time.struct_time(tm_year=2019, tm_mon=12, tm_mday=11, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=345, tm_isdst=-1)
String representing time: 13::55::26
time.struct_time(tm_year=1900, tm_mon=1, tm_mday=1, tm_hour=13, tm_min=55, tm_sec=26, tm_wday=0, tm_yday=1, tm_isdst=-1)

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Python: Tips of the Day

Getting the last element of a list:

some_list[-1] is the shortest and most Pythonic.

In fact, you can do much more with this syntax. The some_list[-n] syntax gets the nth-to-last element. So some_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.

You can also set list elements in this way. For instance:

>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the last element
>>> some_list[-2] = 3 # Set the second to last element
>>> some_list
[1, 3, 5]

Note that getting a list item by index will raise an IndexError if the expected item doesn't exist. This means that some_list[-1] will raise an exception if some_list is empty, because an empty list can't have a last element.

Ref: https://bit.ly/3d8TfFP