Python timestamp with timezones

Andreas

2022-01-27 18:00

Because pytz isn't used anymore and I needed to add a timezone to a timestamp, I looked into using only the datetime module of Python.

>>> import datetime
>>>
>>> # based on 1970-01-01 00:00 UTC
>>> timestamp = 1643104698.5201788
>>>
>>> # using the local timezone (Europe/Berlin in my case)
>>> datetime.datetime.fromtimestamp(timestamp)
datetime.datetime(2022, 1, 25, 10, 58, 18, 520179)
>>>
>>> # with UTC as timezone
>>> datetime.datetime.utcfromtimestamp(timestamp)
datetime.datetime(2022, 1, 25, 9, 58, 18, 520179)
>>>
>>> # with timezone set to Europe/Berlin (needs Python 3.9 for ZoneInfo)
>>> from zoneinfo import ZoneInfo
>>> tz = ZoneInfo('Europe/Berlin')
>>> datetime.datetime.fromtimestamp(timestamp, tz)
datetime.datetime(2022, 1, 25, 10, 58, 18, 520179, tzinfo=zoneinfo.ZoneInfo(key='Europe/Berlin'))
>>>
>>> # with timezone set to UTC
>>> datetime.datetime.fromtimestamp(timestamp, datetime.timezone.utc)
datetime.datetime(2022, 1, 25, 9, 58, 18, 520179, tzinfo=datetime.timezone.utc)

In my application I used the last one because I don't need any information about Europe/Berlin.