Re: [Ntp] Negative leap-second?

I think predictions of a negative leap second are very premature, but I
have fewer worries about a negative one than about a positive one. I've
reviewed quite a lot of leap second handling code and never encountered any
that gets the positive case right but the negative case wrong; programmers
clued into the issue at all and generally clued in enough to know that
negative ones are a possibility. What makes me *less* worried about
negative leap seconds (rather than just not-much-more worried) is their
effect on leap-second-naive code: they make POSIX time jump forward rather
than backward. Lots of code out there wrongly assumes that POSIX time can
never jump backward. Code that assumes it can never jump forward would get
broken every time someone every time someone suspends their laptop or
pauses their VM or just puts their OS scheduler under a lot of load.

On Tue, Aug 2, 2022, 19:06 Danny Mayer <mayer@pdmconsulting.net> wrote:

> Apparently the earth's rotation is speeding up:
> https://www.timeanddate.com/news/astronomy/shortest-day-2022
>
> If we have to subtract a leap-second I think we will see failures, since
> this is rarely if ever tested.
>
> Danny
>
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