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Python Dates and Times in Python (2014) Where on Earth do Timezones Make Sense? Timezone Strings

Posted by Joshua Faisal
Joshua Faisal
4,493 Points

Create a function named to_timezone that takes a timezone name as a string. Convert starter to that timezone using pytz'

ive been stuck on this one for a while. im not exactly sure what im doing wrong.

timezone.py 
import datetime

import pytz

starter = pytz.utc.localize(datetime.datetime(2015, 10, 21, 23, 29))

def to_timezone(tz_as_str):
     return starter.astimezone(tz_as_str)

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,717 Points
Jeff Muday
Jeff Muday
Treehouse Moderator 28,717 Points

You are very close! What you have to do is use the pytz timezone library object to convert the string.

I'm on the east coast of the US, so I can print my local time. And then convert it to different timezones. It's pretty cool and I don't have to use a geeky watch!

import datetime
import pytz

# Set now to the CURRENT TIME
starter = datetime.datetime.now()

def to_timezone(tz_as_str):
    return starter.astimezone(pytz.timezone(tz_as_str))

# print the time of different locales -- My timezone is east coast US, 
# then Copenhagen, New York, and Portland
print(f"My local time is { starter }")
print(f"The time in Copenhagen, Denmark is { to_timezone('Europe/Stockholm') }")
print( f"The time in New York is { to_timezone('US/Eastern') }" )
print( f"The time in Portland is { to_timezone('US/Pacific') }" )

# show the list of all timezones that pytz knows about
print( pytz.all_timezones )

The output

My local time is 2022-08-29 18:00:10.835214
The time in Copenhagen, Denmark is 2022-08-30 00:00:10.835214+02:00
The time in New York is 2022-08-29 18:00:10.835214-04:00
The time in Portland is 2022-08-29 15:00:10.835214-07:00
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