Windows 10: Recent Mexico time zone & DST changes

Hello,On the evening of October 28, 2022, the Mexican government published a decree that cancelled the DST changes for the entire country, and moved the time zone for certain regions.The problem is that the decree took effect on October 30, at midnight.Adiós al horario de verano Secretaría de Energía Gobierno gob.mx www.gob.mx Governent official website, in SpanishBasically, the changes are:Mexico Central Time Mexico City, Guadalajara, Monterrey stays at UTC-6, but removes DST change from April, 2023Mexico Mountain Time Chihuahua, Mazatlan, La Paz stays at UTC-7, but removes

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DST problems for GMT zone (London)

We were able to correct ours by changing the time zone and changing it back, forcing the device to read the DST settings.

 

Time Zone Change

I moved states recently and went to change my time zone, only to discover my new time zone (Sydney) wasn't on the list.

How do I get the new time zone added. I would have thought all the major cities would have been there automatically.

 

Task Scheduler and Synchronizing Across Time Zones fails


I am in the Eastern Time Zone which observes DST. I have Tasks that must be scheduled according to time in another Time zone that does NOT observe DST. I thought that checking the “Synchronize Across Time Zones” option box would do the trick, but that hasn’t worked. The tasks continue to be triggered according to my local time affected by DST, rather than one hour later to account for the reduced time difference.

Strangely, when I check the “Synchronize Across Time Zones” option, the “Next Run Time” under the Task Scheduler panel shows the correctly adjusted time, yet the task is still triggered at the time shown under “Triggers”. That is “Synchronize across Time zones” has no effect. See attached screen grab.

For context, the tasks record streamed audio programs from Egypt which which does not observe DST. So it is 7 hours ahead of Eastern Time in winter, when No DST is in effect and only 6 hours ahead in the “summer”, ie. when DST is observed here. Until now, I changed the trigger times at every time change, but thought that “Synchronize across Time Zones” would apply the trigger time changes automatically, but clearly it doesn’t.
So:

1. Why doesn’t it work in the way I set it up when even the “Next Run Time”s show the correct times?
2. How is the “Synchronize across Time zones” option supposed to work since I clearly don’t understand enough to use it properly, and
3. If I am taking a wrong approach to my problem, what is a better way?

Thanks

gc

PS: I saw at Defining Triggers - Windows 7 Tutorial that "Synchronize Across Time Zones" means "Configures the task to run using Universal Time Coordinated (UTC) instead of local time". I set a test trigger using UTC, but the task did not run.