Answers for "transform date to day numberof year python"

datetimes to day of year python

>>> import datetime
>>> today = datetime.datetime.now()
>>> print today
2009-03-06 15:37:02.484000
>>> today.strftime('%j')
'065'

python set day of date to 1

from datetime import datetime

your_date = datetime.strptime('26 June 2021', '%d %b %Y')
# Using the .replace() method:
newdatetime = your_date.replace(day=1)
# 2021-06-01 00:00:00