Example 1: python datetime string
import datetime
today = datetime.datetime.now()
date_time = today.strftime("%m/%d/%Y, %H:%M:%S")
print("date and time:",date_time)
Example 2: datetime to string python
from datetime import datetime
now = datetime.now()
year = now.strftime("%Y")
print("year:", year)
month = now.strftime("%m")
print("month:", month)
day = now.strftime("%d")
print("day:", day)
time = now.strftime("%H:%M:%S")
print("time:", time)
date_time = now.strftime("%m/%d/%Y, %H:%M:%S")
print("date and time:",date_time)
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Directive Meaning Example
%a Abbreviated weekday name. Sun, Mon, ...
%A Full weekday name. Sunday, Monday, ...
%w Weekday as a decimal number. 0, 1, ..., 6
%d Day of the month as a zero-padded decimal. 01, 02, ..., 31
%-d Day of the month as a decimal number. 1, 2, ..., 30
%b Abbreviated month name. Jan, Feb, ..., Dec
%B Full month name. January, February, ...
%m Month as a zero-padded decimal number. 01, 02, ..., 12
%-m Month as a decimal number. 1, 2, ..., 12
%y Year without century as a zero-padded decimal number. 00, 01, ..., 99
%-y Year without century as a decimal number. 0, 1, ..., 99
%Y Year with century as a decimal number. 2013, 2019 etc.
%H Hour (24-hour clock) as a zero-padded decimal number. 00, 01, ..., 23
%-H Hour (24-hour clock) as a decimal number. 0, 1, ..., 23
%I Hour (12-hour clock) as a zero-padded decimal number. 01, 02, ..., 12
%-I Hour (12-hour clock) as a decimal number. 1, 2, ... 12
%p Locale’s AM or PM. AM, PM
%M Minute as a zero-padded decimal number. 00, 01, ..., 59
%-M Minute as a decimal number. 0, 1, ..., 59
%S Second as a zero-padded decimal number. 00, 01, ..., 59
%-S Second as a decimal number. 0, 1, ..., 59
%f Microsecond as a decimal number, zero-padded on the left. 000000 - 999999
%z UTC offset in the form +HHMM or -HHMM.
%Z Time zone name.
%j Day of the year as a zero-padded decimal number. 001, 002, ..., 366
%-j Day of the year as a decimal number. 1, 2, ..., 366
%U Week number of the year (Sunday as the first day of the week). All days in a new year preceding the first Sunday are considered to be in week 0. 00, 01, ..., 53
%W Week number of the year (Monday as the first day of the week). All days in a new year preceding the first Monday are considered to be in week 0. 00, 01, ..., 53
%c Locale’s appropriate date and time representation. Mon Sep 30 07:06:05 2013
%x Locale’s appropriate date representation. 09/30/13
%X Locale’s appropriate time representation. 07:06:05
%% A literal '%' character. %
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Example 3: python time format
The program below converts a datetime object containing current date and time to different string formats.
Code:
from datetime import datetime
now = datetime.now()
year = now.strftime("%Y")
print("year:", year)
month = now.strftime("%m")
print("month:", month)
day = now.strftime("%d")
print("day:", day)
time = now.strftime("%H:%M:%S")
print("time:", time)
date_time = now.strftime("%m/%d/%Y, %H:%M:%S")
print("date and time:",date_time)
Output after run the code:
year: 2020
month: 03
day: 31
time: 04:59:31
date and time: 03/31/2020, 04:59:31
Here, year, day, time and date_time are strings, whereas now is a datetime object.
Example 4: python date format
%a - Abbreviated weekday name. (Sun, Mon, ...)
%A - Full weekday name. (Sunday, Monday, ...)
%w - Weekday as a decimal number. (0, 1, ..., 6)
%d - Day of the month as a zero-padded decimal. (01, 02, ..., 31)
%-d - Day of the month as a decimal number. (1, 2, ..., 30)
%b - Abbreviated month name. (Jan, Feb, ..., Dec)
%B - Full month name. (January, February, ...)
%m - Month as a zero-padded decimal number. (01, 02, ..., 12)
%-m - Month as a decimal number. (1, 2, ..., 12)
%y - Year without century as a zero-padded decimal number. (00, 01, ..., 99)
%-y - Year without century as a decimal number. (0, 1, ..., 99)
%Y - Year with century as a decimal number. (2013, 2019 etc.)
%H - Hour (24-hour clock) as a zero-padded decimal number. (00, 01, ..., 23)
%-H - Hour (24-hour clock) as a decimal number. (0, 1, ..., 23)
%I - Hour (12-hour clock) as a zero-padded decimal number. (01, 02, ..., 12)
%-I - Hour (12-hour clock) as a decimal number. (1, 2, ... 12)
%p - Locale’s AM or PM. (AM, PM)
%M - Minute as a zero-padded decimal number. (00, 01, ..., 59)
%-M - Minute as a decimal number. (0, 1, ..., 59)
%S - Second as a zero-padded decimal number. (00, 01, ..., 59)
%-S - Second as a decimal number. (0, 1, ..., 59)
%f - Microsecond as a decimal number, zero-padded on the left. (000000 - 999999)
%z - UTC offset in the form +HHMM or -HHMM.
%Z - Time zone name.
%j - Day of the year as a zero-padded decimal number. (001, 002, ..., 366)
%-j - Day of the year as a decimal number. (1, 2, ..., 366)
%U - Week number of the year (Sunday as the first day of the week). All days in a new year preceding the first Sunday are considered to be in week 0. (00, 01, ..., 53)
%W - Week number of the year (Monday as the first day of the week). All days in a new year preceding the first Monday are considered to be in week 0. (00, 01, ..., 53)
%c - Locale’s appropriate date and time representation. (Mon Sep 30 07:06:05 2013)
%x - Locale’s appropriate date representation. (09/30/13)
%X - Locale’s appropriate time representation. (07:06:05)
%% - A literal '%' character. (%)
Example 5: python datetime now
import datetime
print(datetime.datetime.now())
Example 6: datetime.strftime() syntax
from datetime import datetime
date_string = "21 June, 2018"
print("date_string =", date_string)
print("type of date_string =", type(date_string))
date_object = datetime.strptime(date_string, "%d %B, %Y")
print("date_object =", date_object)
print("type of date_object =", type(date_object))