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Windows Secure Lock Screen clock may appear up to 30 seconds behind

https://support.microsoft.com/en-us/windows/secure-lock-screen-clock-may-appear-up-to-30-seconds-behind-7093a752-93b3-423a-9558-902bceb2ae47
7•shscs911•2h ago

Comments

echoangle•52m ago
> Both experiences use the same Windows kernel system clock.

Ah yes, the lock screen experience. I could stare at it forever.

On a more serious note, does anyone know why they would do it like that? Why is one polling interval aligned and the other isn’t? What’s the security impact?

manwe150•12m ago
I’ve done clocks like this before. It was sheer laziness. Easier to just set a 30 second update window than to actually compute the time to next update. Particular in some of my sloppier projects without an event loop. Of course, the only person who saw the result was me and it made me chuckle at considering the complexity of managing time well.