Pandas add one day to column

Question

I need to add 1 day to each date I want to get the begining date of the following month eg 2014-01-2014 for the 1st item in the dataframe. Tried:

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Answer 1

One quick mention. if you are using data-frames and your datatype is datetime64[ns] non indexed, Then I would go as below: Assuming the date column name is 'Date to Change by 1' and you want to change all dates by 1 day.

import time
from datetime import datetime, timedelta, date, time

before
['Date to Change by 1'] = 1/31/2020

df['Date to Change by 1'] = (pd.to_datetime(df['Date to Change by 1']) + 
timedelta(1)

After
['Date to Change by 1'] = 2/01/2020