Add Months to datetime Object in Python
In this article let’s learn how to add months to a datetime object in python.
Example 1: Adding years to a datetime object using NumPy library.
In this example we use the NumPy library, to create a datetime object using the np.datetime64() method and then add months using timedelta using the np.timedelta64() method. A string of date format is passed in the np.datetime64() method and the required number of months is added using the np.timedelta64() method.
Python3
# import packagesimport numpy as np # adding months to a given dateprint('old date is : ' + str(np.datetime64('2022-04')))new_date = np.datetime64('2022-04') + np.timedelta64(5, 'M')print('new date is : '+str(new_date)) |
Output:
old date is : 2022-04 new date is : 2022-09
Example 2: Adding years to a datetime object using relativedelta
In this example, we use datetime and dateutil packages. The current date is known by using the datetime.date() method is used to create a date object by specifying the year, month, and day, and by using the relativedelta() method we add the number of months, and finally, we get a new datetime object.
Python3
# import packagesfrom datetime import datefrom dateutil.relativedelta import relativedelta # adding months to a particular dateprint('date : ' + str(date(2020, 5, 15)))new_date = date(2020, 5, 15) + relativedelta(months=5)print('new date is : '+str(new_date)) |
Output:
date : 2020-05-15 new date is : 2020-10-15
Example 3: Adding years to a datetime object using the panda’s library.
In this example, we import the pandas’ package. In pandas, a string is converted to a datetime object using the pd.to_datetime() method and pd.DateOffset() method is used to add months to the created pandas object. finally, a new datetime object is created.
Python3
# import packagesimport pandas as pd # adding months to a particular datepresent = '2022-05-05'print('date : ' + present)new_date = pd.to_datetime(present)+pd.DateOffset(months=5)print('new date is : '+str(new_date)) |
Output:
date : 2022-05-05 new date is : 2022-10-05 00:00:00
