On 10/4/2026 2:15 PM, Guy Harris via tz wrote:
With the recent changes in Canada it seems this is being more driven at a
provincial level, and there is probably not a good nexus there to reach the
right people.
I think daylight saving time might also be under the control of states rather
than solely of the federal government in Australia as well. The states have
some more limited control in the US, as they can opt out of daylight saving
time, as Arizona has done.
Arizona, Hawaii, Puerto Rico and the pacific territories - all under US
control and have decided to opt out of DST. (The territories are
considered states for the purpose of the law.)
States can opt out one or more of their time zones (if more than one
zone in their state). No restriction on whether a state borders a time
zone line (Ohio or Iowa could opt out of DST without further federal
approval).
Changing the dividing lines is decided by the US Secretary of
Transportation.
While Canadians would balk at that level of national control it helps
provide a more coordinated definition of the time zones instead of
allowing opt out and changing zones down to the community level. But all
politics being local, it works for Canada.
