[Trumpi]

By some coincidence, I was reading some web pages of the TZ database, and your comment reminded me of this:

> If your government plans to change its time zone boundaries or daylight saving rules, inform [e-mail] well in advance, as this will coordinate updates to many cell phones, computers, and other devices around the world. The change should be officially announced at least a year before it affects how clocks operate; otherwise, there is a good chance that some clocks will operate incorrectly after the change, due to delays in propagating updates to software and data.

Source: https://data.iana.org/time-zones/tz-link.html