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Discussion of precise time and frequency measurement

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Re: [time-nuts] Z3801A gps week rollover

HM
Hal Murray
Fri, Sep 9, 2016 4:59 PM

The bigger problem for NTP is when the leap second correction process is
thrown off by the “time warp”. When leap seconds get fixed in  mid-August
rather than the end of June … not a good thing.

Is that still a problem?  If so, do you have any details.  I don't know of
any leap-second bugs that haven't been fixed.

The usual most-recent problem is that GPS now announces the pending leap many
months in advance and some of the drivers didn't have a June/December filter.
So the system would do bogus leaps at the end of all the months between the
start-of-announce and the right one.

--
These are my opinions.  I hate spam.

kb8tq@n1k.org said: > The bigger problem for NTP is when the leap second correction process is > thrown off by the “time warp”. When leap seconds get fixed in mid-August > rather than the end of June … not a good thing. Is that still a problem? If so, do you have any details. I don't know of any leap-second bugs that haven't been fixed. The usual most-recent problem is that GPS now announces the pending leap many months in advance and some of the drivers didn't have a June/December filter. So the system would do bogus leaps at the end of all the months between the start-of-announce and the right one. -- These are my opinions. I hate spam.