cats-effect Sync `SyncIO.realTime*` methods with `Clock` implementation

Otherwise, Clock[SyncIO].realTimeInstant might not be the same as SyncIO.realTimeInstant. Discussed on Discord.

Also adds SyncIO.realTimeZonedDateTime, similar to IO.realTimeZonedDateTime.

Nov 05 '25 07:11 satorg

Hmm... The CI failure doesn't seem relevant to me:

[error] sbt.librarymanagement.ResolveException: Error downloading org.typelevel:cats-effect-laws_3:3.5.2
[error]   Not found

Nov 05 '25 07:11 satorg

In theory we could split this into 2 parts: the fix, and the new method. The fix could go into 3.6.x. (But I'm not sure it's worth it.)

Nov 06 '25 15:11 durban

I can create a separate PR without realTimeZonedDateTime, if necessary. This one could go 3.7, the other one would go straight to 3.6 then. Just let me know what works the best. Thank you!

Nov 06 '25 21:11 satorg

Honestly, I'm not sure it's worth the hassle. You seem to be the first to notice the bug, so if you don't need the fix in 3.6.x, then let's leave this as it is. (I mean the PR is fine as it is.)

Nov 07 '25 17:11 durban