Python strftime(): In this article, you will learn how to convert date, time and datetime items to its equivalent string (with the help of examples)
The strftime() method returns a string representing date and time using date, time, or datetime object.
In this article, you will learn-
Example 1: datetime to string using strftime()
The program below converts a datetime object containing the current date and time to different string formats.
from datetime import datetime now = datetime.now() # current date and time 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)
When you run the program, the output will something like be:
year: 2018 month: 12 day: 24 time: 04:59:31 date and time: 12/24/2018, 04:59:31
Here, year, day, time and date_time are strings, whereas now is a datetime object.
How strftime() works?
In the above program, %Y, %m, %d, etc. are format codes. The strftime() method takes one or more format codes as an argument and returns a formatted string based on it.
1. We imported datetime class from the datetime module. It’s because the object of the datetime class can access the strftime() method.
2. The datetime object containing the current date and time is stored in now variable.
3. The strftime() method can be used to create formatted strings.
4. The string you pass to the strftime() method may contain more than one format codes.
Example 2: Creating string from a timestamp
from datetime import datetime timestamp = 1528797322 date_time = datetime.fromtimestamp(timestamp) print("Date time object:", date_time) d = date_time.strftime("%m/%d/%Y, %H:%M:%S") print("Output 2:", d) d = date_time.strftime("%d %b, %Y") print("Output 3:", d) d = date_time.strftime("%d %B, %Y") print("Output 4:", d) d = date_time.strftime("%I%p") print("Output 5:", d)
When you run the program, the output will be:
Date time object: 2018-06-12 09:55:22 Output 2: 06/12/2018, 09:55:22 Output 3: 12 Jun, 2018 Output 4: 12 June, 2018 Output 5: 09AM
Format Code List
The table below shows all the codes that you can pass to the strftime() method.
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 | The year without century as a zero-padded decimal number. | 00, 01, …, 99 |
%-y | The year without century as a decimal number. | 0, 1, …, 99 |
%Y | The 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 3: Locale’s appropriate date and time
from datetime import datetime timestamp = 1528797322 date_time = datetime.fromtimestamp(timestamp) d = date_time.strftime("%c") print("Output 1:", d) d = date_time.strftime("%x") print("Output 2:", d) d = date_time.strftime("%X") print("Output 3:", d)
When you run the program, the output will be:
Output 1: Tue Jun 12 09:55:22 2018 Output 2: 06/12/18 Output 3: 09:55:22
Format codes %c, %x, and %X are used for locale’s appropriate date and time representation.
We also recommend you to check Python strptime(). The strptime() method creates a datetime object from a string.
Please feel free to give your comment if you face any difficulty here.
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