Date Time using python

Aim

Familiarize time and date in various formats (Eg. “Thu Jul 11 10:26:23 IST 2024”).

Legal format codes

Directive	Meaning	Example
%d	Day of the month as a zero-padded decimal number	01, 02, ..., 31
%m	Month as a zero-padded decimal number	01, 02, ..., 12
%Y	Year with century as a decimal number	0001, 0002, ..., 2013, 2014, ..., 9998, 9999
%A	Weekday as locale’s full name	Sunday, Monday, ..., Saturday (en_US)
%a	Weekday as locale’s abbreviated name	Sun, Mon, ..., Sat (en_US)
%B	Month as locale’s full name	January, February, ..., December (en_US)
%b	Month as locale’s abbreviated name	Jan, Feb, ..., Dec (en_US)
%H	Hour (24-hour clock) as a zero-padded decimal number	00, 01, ..., 23
%I	Hour (12-hour clock) as a zero-padded decimal number	01, 02, ..., 12
%M	Minute as a zero-padded decimal number	00, 01, ..., 59
%S	Second as a zero-padded decimal number	00, 01, ..., 59
%Z	Time zone name	UTC, EST, CST

Algorithm

Start
Import the datetime module
Get the current date and time using the now() method
Print the current date and time in various formats
End

Program

datetime.py

# Import the datetime module
from datetime import datetime
 
# Get the current date and time
now = datetime.now()
 
# Print the current date and time in various formats
print("Current date and time: ", now)
print("Current date: ", now.strftime("%Y-%m-%d"))
print("Current time: ", now.strftime("%H:%M:%S"))
print("Current day: ", now.strftime("%A"))
print("Current month: ", now.strftime("%B"))
print("Current year: ", now.strftime("%Y"))
print("Current hour: ", now.strftime("%H"))
print("Current minute: ", now.strftime("%M"))
print("Current second: ", now.strftime("%S"))
print("Current timezone: ", now.strftime("%Z"))

Sample Input/Output

Current date and time:  2024-07-11 10:26:23.123456
Current date:  2024-07-11
Current time:  10:26:23
Current day:  Thursday
Current month:  July
Current year:  2024
Current hour:  10
Current minute:  26
Current second:  23
Current timezone:  IST

Explanation

The program imports the datetime module.
The program gets the current date and time using the now() method.
The program prints the current date and time in various formats.
The program prints the current date and time in the format "YYYY-MM-DD HH:MM:SS".
The program prints the current date in the format "YYYY-MM-DD".
The program prints the current time in the format "HH:MM:SS".
The program prints the current day in the format "Day".
The program prints the current month in the format "Month".
The program prints the current year in the format "YYYY".
The program prints the current hour in the format "HH".
The program prints the current minute in the format "MM".
The program prints the current second in the format "SS".
The program prints the current timezone in the format "Timezone".

Complexity Analysis

The time complexity of the program is O(1) as the program performs a fixed number of operations irrespective of the input size.

The space complexity of the program is O(1) as the program uses a fixed amount of space irrespective of the input size.

How can you improve this program?

You can add more date and time formats to print.
You can add more functionalities like adding or subtracting days, months, years, hours, minutes, and seconds to the current date and time.

Summary

In this tutorial, you learned how to work with date and time in Python using the datetime module. You learned how to get the current date and time and print them in various formats. You also learned how to extract the day, month, year, hour, minute, second, and timezone from the current date and time. You can use this knowledge to work with date and time in your Python programs.

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