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A comment on 60 kHz (2022). Parent comment

Re:60 kHz (2022) by lxgr on Friday May 31, 2024 @11:55PM (#40542747)
Oh, is there no “DST in effect” flag in the signal?

As I understand it, the US switches at the same day across the country (for the states that do have it), so that should theoretically be possible.

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Re:60 kHz (2022) by quintushoratius on Saturday June 01, 2024 @06:39AM (#40544502)
Not every region of the continental US respects DST.
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Re:60 kHz (2022) by lxgr on Saturday June 01, 2024 @08:37AM (#40545234)
I know, but if it does, it switches on the same day as all the others, which could be encoded in the signal, and it seems like it is [1].

So instead of a switch to “add an hour”, there could be one that says “add an hour if the signal says DST is currently in effect”.

[1] https://en.wikipedia.org/wiki/WWVB#Amplitude-modulated_time_...

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Re:60 kHz (2022) by joezydeco on Saturday June 01, 2024 @01:38PM (#40547642)
The time code format does include a DST bit.

https://www.nist.gov/pml/time-and-frequency-division/time-di...

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