Yo Tom! On Tue, 15 Jan 2019 10:50:10 -0800 "Tom Van Baak" <[email protected]> wrote:
> Nope. All minutes have 60 seconds in Excel. And in Windows. And in
> Unix/POSIX.
Not quite. Check out "man gmtime" for one way that POSIX represents time.
Specifically:
struct tm {
[...]
int tm_sec; /* Seconds (0-60) */
gmtime() is perfectly capable of reporting 61 seconds in a minute.
Failure to account for this causes mnay problems.
What it does not do well is accounting for leap seconds that are in
the past or future.
> Right, this is typical for almost any software developed anywhere.
> Leap seconds are such a weird exception, almost no commercial
> software, web frontend or backend, or mobile phones, or mobile apps
> deal with them correctly.
But gpsd and ntpd try real hard to be correct. Sadly, with leap smear,
there is no consensus on what is 'correct'.
RGDS
GARY
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