You can subtract a day from a python date using the timedelta object. You need to create a timedelta object with the amount of time you want to subtract. Then subtract it from the date.
from datetime import datetime from datetime import timedelta today = datetime.today() yesterday = today - timedelta(days=1) print(today) print() print(yesterday)
This will give the output −
2017-12-29 12:28:06.531791 2017-12-28 12:28:06.531791
You can also subtract years, months, hours, etc. in the same way from a date using the timedelta object.