Date in Python

In Python, we can work with dates, time, and calendars using the datetime, time and calendar modules Python provides.

In real-time applications(such as chat applications, video conference apps, and e-commerce applications) date and time are one of the most crucial parts of the applications.

The "datetime" class provides us with a specific date and time, including the year, month, day, hour, minute, second, and microsecond.

Here's a overview of "datetime" module:

datetime class in python:

import datetime

# Created a datetime object for current date and time
currentDatetime = datetime.datetime.now()
print(currentDatetime)  # Output: e.g., 2023-06-12 11:20:00.334202

date class in python:

The date class from datetime module represents a date without time information. The date class helps us to retrieve the Current Date.

Example:

import datetime

# Creating a date object
currentDate = datetime.date.today()
print("Today Date:", currentDate) # Output: Today Date: 2023-06-12

This will output the current date in the format YYYY-MM-DD.

time class in python:

The time class from datetime module represents the time of day, independent of a specific date.

Example:

import datetime

# Creating a time object
currentTimeWithoutDate = datetime.time(hour=13, minute=45, second=55)
print(currentTimeWithoutDate)  # Output: 13:45:55

timedelta class in python:

The timedelta class from datetime module represents a duration difference between two dates or times.

Example:

import datetime

# Creating timedelta objects
timeDelta1 = datetime.timedelta(days=3)
timeDelta2 = datetime.timedelta(days=4, hours=5)


# Calculating the difference between two dates
date1 = datetime.date(2023, 6, 13)
date2 = datetime.date(2023, 6, 19)
deltaDays = date2 - date1

print(timeDelta1)       # Output: 3 days, 0:00:00
print(timeDelta2)       # Output: 4 days, 5:00:00
print(deltaDays)        # Output: 6 days, 0:00:00

Formatting Dates:

date class from datetime module helps in formatting dates.

Example:

import datetime

# Creating a date object
current_date = datetime.date.today()
formatted_date = current_date.strftime("%Y-%m-%d")
print(formatted_date) # Output: 2023-06-12

Creating Specific Dates:

datetime module class date helps to create a specific date

Example:

import datetime

specific_date = datetime.date(2022, 12, 12)
print(specific_date) # Output: 2022-12-12

Formatting Time:

Formatting time using asctime function provided in the time module in Python.

Example:

# we can use time module from python for time related tasks.
import time    
 
# it returns the formatted time        
print(time.asctime(time.localtime(time.time())))  # 0utput: Mon Jun 12 10:06:09 2023

calendar module:

we can use the calendar module from python to retrieve calendar info.

Example:

import calendar;    

specificMonth = calendar.month(2023,6)    
#print the calendar month of June 2023    
print(specificMonth)

Output:

     June 2023
Mo Tu We Th Fr Sa Su
          1  2  3  4
 5  6  7  8  9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30

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