A fork for the time-zone database?

If legislators pass a measure for Universal Time Normalization, there could be legal repercussions for _not_ creating updated versions of official records! (The old ones could be preserved too, to keep a thorough record of their inherent historic inequities.) I'm not very serious about this, but was imagining what a "lowest common denominator" approach to ongoing global timekeeping could be like, and some of the ramifications.

Maybe a media review committee could be tasked with figuring out the best disclaimer to put on copies of films such as High Noon (1952) to caution people against the dangers of localized timekeeping.