That's going to be tough and expensive on a personal level for sure. But the cost of that will probably be a rounding error on GDP calculations, which is what everyone pays attention to. There are other things that would need to be changed. Things like databases have their own built-in TZ tables to do operations such as date-time conversions. While the operating system they run on might get patched with an updated OS-level TZ database, things that ship their own (SQL servers of various sorts, Java runtimes, I think even PHP IIRC) will /also/ need to be updated to ensure any local time conversion functions stay correct.
> On Dec 12, 2024, at 11:46, Brian Park via tz <[email protected]> wrote: > > One thing rarely mentioned in these discussions is the millions of electronic > devices (e.g. timers, clocks, watches, thermostats, etc) which are hardcoded > to handle DST using the current US/Canada rules (i.e. first Sunday in Nov, > second Sunday in Mar). If the DST rules are changed, those devices will > become obsolete because the firmware for those things will never be updated. > I own maybe 10-15 of such devices, and I would be annoyed to throw away those > items which are otherwise working perfectly fine.
