<chrono>: Fix utc_clock seconds formatting#1868
Merged
StephanTLavavej merged 5 commits intomicrosoft:chronat2from Apr 21, 2021
Merged
<chrono>: Fix utc_clock seconds formatting#1868StephanTLavavej merged 5 commits intomicrosoft:chronat2from
StephanTLavavej merged 5 commits intomicrosoft:chronat2from
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Additional fixes for offsetting into a leap second coming, but I need to get the other PRs landed. |
Seconds were being formatted incorrectly because we incorrectly assumed that a day is 24*60*60 seconds (which is what flooring does) when in reality they aren't always (like if there was a leap second). This error compounds over time as leap seconds are inserted, so we need to add the elapsed leap seconds at any given time point to get the correct seconds. This issue doesn't affect the `tm` structure because it is constructed out of a system time (`utc_clock::to_sys`), which has 24*60*60 second days.
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StephanTLavavej
requested changes
Apr 20, 2021
Also fixes Clang compiler errors. Co-authored-by: MattStephanson <68978048+MattStephanson@users.noreply.github.com>
StephanTLavavej
approved these changes
Apr 21, 2021
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Seconds were being formatted incorrectly because we incorrectly assumed
that a day is
24*60*60seconds (which is what flooring does) when inreality they aren't always (like if there was a leap second). This error
compounds over time as leap seconds are inserted, so we need to add the
elapsed leap seconds at any given time point to get the correct seconds.
This issue doesn't affect the
tmstructure because it is constructedout of a system time (
utc_clock::to_sys), which has24*60*60seconddays.