Eric,
You might want to try this thread over on the LEAPSECS list [1]. Yes,
there's a special list just for leap second nuts so that we don't have
to discuss them here on time-nuts. You'll find the archives deep,
fascinating, and often contentious. Practical real life examples like
your low-cost high-reliability UTC station clock would be most welcome.
/tvb
[1] https://pairlist6.pair.net/mailman/listinfo/leapsecs
On 10/22/2019 3:28 PM, Eric Scace wrote:
Maybe someone on the list has a recent and authoritative answer to the
following questions.
I’ve been digging around in “civilian mode” (not an OS X or iOS developer)
trying to determine if current Mac OS X and iOS releases handle leap seconds:
no smearing
proper display of 23:59:60, etc on the system clock & return of same to
appropriate function calls.
I have not been able to discover a well-documented answer to this question;
e.g., video of an OS X/iOS system clock displaying a leap second, or
Apple-sourced documentation stating leap second support.
There are assertions that OS X was built around POSIX and suffers from the
limitations of Unix epoch time decisions of long ago. Is that still the case?
(In contrast, Microsoft docs claim Win 2018 Oct and Win Server 2019 now
have leap second support.)
Thanks,
— Eric
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