calculate on datetime.dateime object code example

Example 1: date library python strftime

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)

Example 2: python weekday

df['date_time'].dt.dayofweek #gives only the index(0-monday,6-sunday)
df['date_time'].dt.weekday_name #gives the day