Servers should always store UTC. Local time is a presentation layer issue that only humans need to see. If you, as a user, want to look at some timestamped data, then you probably want to see it in your time zone, which is irrespective of what the server thinks it is.

UTC is unambiguous for everyone (including leap days/seconds) and will never overlap with any daylight savings time (except for exceptional circumstances).

Local times can (and do) overlap every 6 months, so if you were looking at logs that have used local time as a timestamp, March and October will repeat that hour.

Servers should always store UTC. Local time is a presentation layer issue that only humans need to see. If you, as a user, want to look at some timestamped data, then you probably want to see it in your time zone, which is irrespective of what the server thinks it is.

UTC is unambiguous for everyone (including leap days/seconds) and will never overlap with any daylight savings time (except for exceptional circumstances).

Local times can (and do) overlap every 6 months, so if you were looking at logs that have used local time as a timestamp, March would appear to be missing that hour, and October would have that hour twice.