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Reusing datetime.timezone would not make sense. datetime.timezone represents fixed UTC offsets, while ZoneInfo objects represent IANA timezones (which generally

• lifthrasiir 4y ago
  I believe GP wants something like `datetime.timezone.from_tzid("Etc/UTC")`, which is by itself a fine backward-compatible upgrade from the original interface.
  • Macha 4y ago
    I would disagree that this is a fine interface. It's not clear with the "Etc/UTC", but what is the offset of datetime.timezone.from_tzid("America/New_York")? You need a datetime to go with the TZ id to answer that question. And experience has shown "Just assume the current time" is a bit of a footgun.
    • lifthrasiir 4y ago
      As currently defined, datetime.timezone doesn't directly expose the zone offset as a whole and always requires some reference datetime object to compute it, even though the built-in implementation would simply ignore it for now [1]. So it can be surely upgraded. [1] https://docs.python.org/3/library/datetime.html#datetime.timezone.utcoffset https://docs.python.org/3/library/datetime.html#datetime.tim...