Python timedelta() function is present under datetime library which is generally used for calculating differences in dates and also can be used for date manipulations in Python. It is one of the easiest ways to perform date manipulations.
Syntax : datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0)
Returns : Date
Code #1:
# Timedelta function demonstration from datetime import datetime, timedelta # Using current time ini_time_for_now = datetime.now() # printing initial_date print ("initial_date", str(ini_time_for_now)) # Calculating future dates # for two years future_date_after_2yrs = ini_time_for_now + \ timedelta(days = 730) future_date_after_2days = ini_time_for_now + \ timedelta(days = 2) # printing calculated future_dates print('future_date_after_2yrs:', str(future_date_after_2yrs)) print('future_date_after_2days:', str(future_date_after_2days)) |
initial_date 2019-02-27 12:41:45.018389 future_date_after_2yrs: 2021-02-26 12:41:45.018389 future_date_after_2days: 2019-03-01 12:41:45.018389
Code #2:
# Timedelta function demonstration from datetime import datetime, timedelta # Using current time ini_time_for_now = datetime.now() # printing initial_date print ("initial_date", str(ini_time_for_now)) # Calculating past dates # for two years past_date_before_2yrs = ini_time_for_now - \ timedelta(days = 730) # for two hours past_date_before_2hours = ini_time_for_now - \ timedelta(hours = 2) # printing calculated past_dates print('past_date_before_2yrs:', str(past_date_before_2yrs)) print('past_date_after_2days:', str(past_date_before_2hours)) |
initial_date 2019-02-27 12:41:46.104662 past_date_before_2yrs: 2017-02-27 12:41:46.104662 past_date_after_2days: 2019-02-27 10:41:46.104662
Code #3:
# Timedelta function demonstration from datetime import datetime, timedelta # Using current time ini_time_for_now = datetime.now() # printing initial_date print ("initial_date", str(ini_time_for_now)) # Some another datetime new_final_time = ini_time_for_now + \ timedelta(days = 2) # printing new final_date print ("new_final_time", str(new_final_time)) # printing calculated past_dates print('Time difference:', str(new_final_time - \ ini_time_for_now)) |
initial_date 2019-02-27 12:41:47.386595 new_final_time 2019-03-01 12:41:47.386595 Time difference: 2 days, 0:00:00
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