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Daylight saving creator left the chat.... (lemmy.world)
submitted 2 years ago by to c/programmer_humor@programming.dev
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[–] 1 point 2 years ago* (last edited 2 years ago) (1 child)

not unless somehow the system clock was modified while it was running..

Which is how most systems handle leap seconds.

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  • [–] 0 points 2 years ago* (1 child)

    Leap seconds still make time go forwards, not backwards. NTP clients would also resolve small time discrepancies while still advancing forwards prior to the next time sync.

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  • [–] 1 point 2 years ago* (1 child)

    Leap seconds can make time go both ways, but adding them makes time stop/go back because 24:00:00 cannot be represented as 1/86400 part of day N instead of day N+1 on major OSes. And they were only added so far.

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  • [–] 1 point 2 years ago* (last edited 2 years ago) (1 child)

    It doesn't work like that. UTC goes forward always. Leap seconds are scheduled and known in advance. NTP time services will just smear time advancement a little to account for an additional second. Time never has to go backwards. This is how Google does it.

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