isocalendar() Function Of Datetime.date Class In Python
Last Updated :
28 Jul, 2021
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The isocalendar() function is used to return a tuple containing ISO Year, ISO Week Number, and ISO Weekday.
Note:
- According to ISO standard 8601 and ISO standard 2015, Thursday is the middle day of a week.
- Therefore, ISO years always start with Monday.
- ISO years can have either 52 full weeks or 53 full weeks.
- ISO years do not have any fractional weeks during the beginning of the year or at the end of the year.
Syntax: isocalendar()
Parameters: This function does not accept any parameter.
Return values: This function returns a tuple of ISO Year, ISO Week Number and ISO Weekday.
Example 1: Get ISO Year, ISO Week Number, and ISO Weekday.
# Python3 code to demonstrate
# Getting a tuple of ISO Year,
# ISO Week Number and ISO Weekday
# Importing date module from datetime
from datetime import date
# Calling the today() function
# to return todays date
Todays_date = date.today()
# Printing today's date
print(Todays_date)
# Calling the isocalendar() function
# over the above today's date to return
# its ISO Year, ISO Week Number
# and ISO Weekday
print(Todays_date.isocalendar())
# Python3 code to demonstrate# Getting a tuple of ISO Year, # ISO Week Number and ISO Weekday# Importing date module from datetimefrom datetime import date # Calling the today() function# to return todays dateTodays_date = date.today()# Printing today's dateprint(Todays_date)# Calling the isocalendar() function# over the above today's date to return# its ISO Year, ISO Week Number# and ISO Weekdayprint(Todays_date.isocalendar())Output:
2021-07-25 (2021, 29, 7)
Example 2: Get ISO Year, ISO Week Number, and ISO Weekday with a specific date.
# Python3 code to demonstrate
# Getting a tuple of ISO Year,
# ISO Week Number and ISO Weekday
# Importing date module from datetime
from datetime import date
# Creating an instance for
# different dates
A = date(2020, 10, 11)
# Calling the isocalendar() function
# over the above specified date
Date = A.isocalendar()
# Printing Original date and its
# ISO Year, ISO Week Number
# and ISO Weekday
print("Original date:",A)
print("Date in isocalendar is:", Date)
# Python3 code to demonstrate# Getting a tuple of ISO Year, # ISO Week Number and ISO Weekday# Importing date module from datetimefrom datetime import date # Creating an instance for # different datesA = date(2020, 10, 11)# Calling the isocalendar() function# over the above specified dateDate = A.isocalendar()# Printing Original date and its # ISO Year, ISO Week Number# and ISO Weekdayprint("Original date:",A)print("Date in isocalendar is:", Date)Output:
Original date: 2020-10-11 Date in isocalendar is: (2020, 41, 7)
