How to get the current date in Python?

How to get the current date in Python?

In this section, we will understand how we can retrieve Python’s current date using various methods. A date is an important part of an application or website, or database server that indicates the day and time the software has been created, stored website records, app version, etc. For example, when a user uses the applications or website for certain work, the software stores the user’s information with a certain date and time. Furthermore, we can say when we visit any social media site such as Twitter, Facebook, WhatsApp, etc. they store the user’s information on which date the particular user’s post, share or send the message, etc. So, we can define the importance of the date and time in the software application.

How to get the current date in Python

In the Python programming language, the datetime module contains a datetime class used to access the computer’s current date and time.

Using the datetime.now() Method

Python datetime.now() method used to display the system’s current date and time. It defines the function inside the datetime module of the Python library.

Syntax:

Consider a program to access the current date and time of the system using the datetime.now() method in Python.

program.py

Output:

Display the current date of the system:
2021-02-28 18:56:52.799555

Using the now() Method

now() method: Python now() method is used to display the current date of the system.

Syntax:

Consider a program to access the current date and time of the system using the now() method in Python.

Program.py

Output:

Current date and time is 2021-02-28 18:58:33.237779

Note: It returns the current date of the system in string format by importing the datetime module in Python programming.

Attributes of the now() Method

Python now() method has various attributes similar to the time attributes such as year, month, date, hour, minute, and second.

Let’s create a program to demonstrate the different attributes of the now() method to print the date in Python.

Program2.py

Output:

Following are the attributes of now() function are :
 The current year is: 2021
 The current month is: 2
 The current date is: 28

Using date.today() Method

A date module class present in the datetime module to return a date object that contains the value of today’s date. Where a today() method is used to get the today date in the Python program.

Syntax:

Let’s consider a program to display the system’s current date using the today() method of date class.

Prog.py

Output:

Get the today date in Python is:  2021-02-28

Using the now().date() Function

A now().date() method used to access the local or current date of the system by importing the datetime module in Python.

Syntax:

Lets’ write a program to print the system’s current date using the datetime.now().date() method in Python.

Program3.py

Output:

The current date is : 2021-02-28

Using the now().time() Function

A now().time() method used to access the local or current time of the system by importing the time() method from the datetime module in Python.

Syntax:

Lets’ write a program to print the system’s current time using the datetime.now().time() method in Python.

Prog2.py

Output:

Current time is: 19:07:45.787512

Date and Time Formats in Python

Following are the various format of date and time to get the desired representation of datetime in Python by passing the parameters to the strftime () function.

Directive Description Example
%a Display the abbreviate weekday name. Sun, Mon, …
%A Display the full weekday name. Sunday, Monday, ..
%b Display the abbreviate month name. Jan, Feb, …, Dec
%B Display the full month’s name. January, February, … December
%c It is used to position the appropriate date and time representation. Sun Feb 21 07:05: 28 2021
%d Display the day of the month in the zero-padded decimal format. 01, 02, …, 28, 30, 31
%H Display the hour (24-hour clock) in the format of a zero-padded decimal number. 00, 01, …, 23
%I It represents the hour (12-hour clock) as a decimal number. 01, 02, …, 12
%j Display the day of the year in the form of a zero-padded decimal number. 001, 002, …, 999
%m Display the month in the form of a zero-padded decimal number. 01, 02, …, 12
%M Display the Minute in the form of a zero-padded decimal number. 00, 01, .., 59
%p It is used to position the equivalent of either AM or PM. AM, PM
%S Display the second in the form of a zero-padded decimal number. 00, 01, …, 59
%U Count the Sunday as the first day of the week number in the year, and it displays the day in the decimal number. 00, 01, …, 53
%w It is used to locate the weekday as a decimal number where Sunday starts with 0. 00, 01, …, 53
%W Count the Monday as the first day of the week number in the year, and it displays the day in the decimal number. 00, 01, …, 53
%x It is used to locate the appropriate representation of the date. 19- 02 – 2021
%X It is used to locate the appropriate representation of the time. 07 : 41: 29
%y Display the year format without containing century in the form of a decimal number. 0, 1, .., 99
%Y Display the year containing century in the form of a decimal number. 2014, 2019, etc.
%z It represents the UTC offset in the form +HHMM or – HHMM.
%Z It is basically used to represent the time zone name (It does not contain any characters if no time zone exists).
%% It just represents a literal “%” character. %

Let’s create a Python program and use the above described formats.

Prog1.py

Output:

Current date and time is = 2021-02-28 19:09:03.739466
Date and time in ISO Format = 2021-02-28T19:09:03.739466
Current year = 2021
Current month is = 2
Current date (day) = 28
Represent Date in dd/mm/yyyy format = 28 / 2/ 2021
Current hour is = 19
 Current minute is = 9
Current Second is = 3
Representation of time in hh: mm: ss format = 19: 9: 3

Using the strftime() Function

Let’s create a program to display current date and time using the strftime() function.

Strftime.py

Output:

2021 - 02 - 28 19: 12: 06
28 / 02 / 2021
 07: 12: 06 PM
Sun, Feb 28, 2021

原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/courses/263562.html

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