How do I set or freeze time in python?

Question

I want to set a fixed time using python different than that seen locally on my system , so that when I used datetime.date.today() I get to see the desired date

Answer 1

you can use pytz package with datetime, And assign to date time now.

from datetime import datetime
import pytz

# add wanted timezone instead of America/New_York
timeZone_AN = pytz.timezone('America/New_York') 
dt_Ny = datetime.now(timeZone_AN)
print("Datetime: ", dt_Ny)

updated according to MrFuppes comment, as pytz will be deprecated you can use zoneinfo. it seems like it will be more useful than pytz.

from zoneinfo import ZoneInfo
timeZone_AN=("America/New_York")

update

If you want to get a fixed datetime then this will help you.

# set your date as year, month, day
desiredTime_ymd = datetime.date(2020, 9,14) 

#print to test 
print(desiredTime_ymd)

#set sec, min, hour
desiredTime_smh=time(14, 42, 59)


#print to test 
print(desiredTime_smh)

#set all at once
#datetime(year, month, day, hour, minute, second, microsecond)
desredTime_all = datetime(2020, 9,14, 14, 42, 59)

#print to test 
print(desiredTime_all)

Answer 2

Add argument tz_offset. See the doc https://pypi.org/project/freezegun/

from freezegun import freeze_time

@freeze_time("2012-01-14 03:21:34", tz_offset=-4)
def test():
    assert datetime.datetime.utcnow() == datetime.datetime(2012, 1, 14, 3, 21, 34)