Python Datetime


 Python Dates

A date in Python is not a data type of its own, but we can import a module named datetime to work with dates as date objects.


Import the datetime module and display the current date:

import datetime

x =


Date Output

When we execute the code from the example above the result will be:

2021-09-24 02:04:28.441207

The date contains year, month, day, hour, minute, second, and microsecond.

The datetime module has many methods to return information about the date object.

Here are a few examples, you will learn more about them later in this chapter:


Return the year and name of weekday:

import datetime

x =



Creating Date Objects

To create a date, we can use the datetime() class (constructor) of the datetime module.

The datetime() class requires three parameters to create a date: year, month, day.


Create a date object:

import datetime

x = datetime.datetime(2020, 5, 17)


The datetime() class also takes parameters for time and timezone (hour, minute, second, microsecond, tzone), but they are optional, and has a default value of 0, (None for timezone).

The strftime() Method

The datetime object has a method for formatting date objects into readable strings.

The method is called strftime(), and takes one parameter, format, to specify the format of the returned string:


Display the name of the month:

import datetime

x = datetime.datetime(2018, 6, 1)


A reference of all the legal format codes:

Directive Description Example

%a Weekday, short version Wed

%A Weekday, full version Wednesday

%w Weekday as a number 0-6, 0 is Sunday 3

%d Day of month 01-31 31

%b Month name, short version Dec

%B Month name, full version December

%m Month as a number 01-12 12

%y Year, short version, without century 18

%Y Year, full version 2018

%H Hour 00-23 17

%I Hour 00-12 05


%M Minute 00-59 41

%S Second 00-59 08

%f Microsecond 000000-999999 548513

%z UTC offset +0100

%Z Timezone CST

%j Day number of year 001-366 365

%U Week number of year, Sunday as the first day of week, 00-53 52

%W Week number of year, Monday as the first day of week, 00-53 52

%c Local version of date and time Mon Dec 31 17:41:00 2018

%C Century 20

%x Local version of date 12/31/18

%X Local version of time 17:41:00

%% A % character %

%G ISO 8601 year 2018

%u ISO 8601 weekday (1-7) 1

%V ISO 8601 weeknumber (01-53) 01