Programmer Humor

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Daylight saving creator left the chat.... (lemmy.world)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 0 points 5 months ago* (last edited 5 months ago) (1 children)

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.

[–] [email protected] 1 points 5 months ago* (last edited 5 months ago) (1 children)

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.

[–] [email protected] 1 points 5 months ago* (last edited 5 months ago) (1 children)

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.

[–] [email protected] 1 points 5 months ago

This is how Google does it in their datacenters, but not major OSes by default