Leap second reminder

Gerry Boudreaux gerry at tape.net
Sat Dec 31 19:48:53 UTC 2005



On Dec 31, 2005, at 11:58 AM, Kevin Day wrote:

>
>
> Just a reminder, at midnight UTC there's a leap second added to  
> most time systems.
>
> Some time systems will stop the clock at 23:59:59.999999 for 1  
> second, some will display 23:59:60 for a second.
>
> Since the last leap second (1998), "leap second aware" time keeping  
> systems(NTP, GPS, etc) have become much more prevalent, so it's  
> much more likely this time that applications and NTP sync'ed  
> devices will see a leap second happen(rather than have them  
> manually corrected later, or not corrected at all). But, I'm not  
> too sure how well everyone has tested applications and devices for  
> how they handle the clock stopping for a second OR an "invalid"  
> time of 23:59:60.
>
> If anyone sees anything die at 00:00:00UTC I'd be interested to know.
>
> -- Kevin

My Juniper seems to be aware:

xxx at juniper> show ntp status
status=4694 leap_add_sec, sync_ntp, 9 events, event_peer/strat_chg,
version="ntpd 4.1.0-a Thu Jul 14 23:46:40 GMT 2005 (1)",
processor="i386", system="JUNOS7.3R1.5", leap=01, stratum=3,
precision=-30, rootdelay=40.669, rootdispersion=49.522, peer=35302,
refid=ntpx.xxx.xxx,
reftime=c7615c1c.65f78359  Sat, Dec 31 2005 13:35:56.398, poll=10,
clock=c7615d8e.d66d698f  Sat, Dec 31 2005 13:42:06.837, state=4,
offset=-2.649, frequency=73.810, jitter=5.194, stability=0.024

note the leap=01 and leap_add_sec




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