[dhritzkiv]

Nothing about timekeeping is simple, with or without this change. Not only do some regions already not observe DST (even within the same state/region); some switch to/from DST at different times of year (and this date changes from year to year).

For a timekeeping library (which likely uses a system-level source of data / the IANA tz database) this shouldn't have any effect.

[salawat]

Never in my career is there more chaos than around any type of change having to do with timekeeping.

It shouldn't be a big deal. Inevitably though, it always seems to bring the bugs out of the woodwork.