[aimor]

Thank you for answering, I understand the dilemma now and why you chose to force users to explicitly convert to UTC.

When I see the example my thinking is: Well, if you want a time offset relative to Europe/Paris then define your time zone that way instead. Of course I haven't seen other libraries give that option and maybe for good reasons.

[ariebovenberg]

Yeah—the perfect solution doesn't exist. The problem is that fixed-offset datetimes are very common since RFC3339 and ISO8061 don't support timezone names. The result is that you often end up with fixed-offset datetimes that should instead be linked to a IANA tz ID.