how to convert datetime with timezone to UTC datetime?

Question

I have a string datetime as - '2022-12-07T13:30:14+00:00' and '2022-12-07T13:30:07.697000+00:00'

How can I convert the + timezone to UTC time and get output in both the cases as - "2022-12-07T13:30:14.000Z" and '2022-12-07T13:30:07.697Z'

Please help.

Does this answer your question? [How do I parse an ISO 8601-formatted date?](https://stackoverflow.com/questions/127803/how-do-i-parse-an-iso-8601-formatted-date) — FObersteiner, Dec 12 '22 at 09:06
Are all your datetime strings end with +00:00 ? Or other offsets exist too ? — 0x0fba, Dec 12 '22 at 09:09

FObersteiner · Answer 1 · 2022-12-12T09:13:37.203

2

You can make use of fromisoformat and isoformat. If you have mixed UTC offsets, convert to UTC with astimezone.

from datetime import datetime, timezone

strings = ['2022-12-07T13:30:14+00:00', '2022-12-07T13:30:07.697000+00:00',
           '2022-12-07T13:30:14+01:00', '2022-12-07T13:30:07.697000+05:30']

for s in strings:
    print(
        datetime.fromisoformat(s)
            .astimezone(timezone.utc) # to UTC if input has other offset
            .isoformat(timespec="milliseconds") # consistent precision in output
            .replace("+00:00", "Z") # no "standard-way" to get Z for UTC
        )
    
# 2022-12-07T13:30:14.000Z
# 2022-12-07T13:30:07.697Z
# 2022-12-07T12:30:14.000Z
# 2022-12-07T08:00:07.697Z

edited Dec 12 '22 at 09:13

answered Dec 12 '22 at 09:09

FObersteiner

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will this convert work for '2022-12-07T13:30:14+05:30' to proper utc time? – deepu2711 Dec 12 '22 at 09:13
1

@deepu2711 just added that; you'll need to convert then. – FObersteiner Dec 12 '22 at 09:14

how to convert datetime with timezone to UTC datetime?

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