nanog mailing list archives

Re: REMINDER: Leap Second


From: Karsten Elfenbein <karsten.elfenbein () gmail com>
Date: Sun, 25 Jan 2015 18:01:40 +0100

Hi,

Java had some issues with 100% CPU usage when NTP was running during
the additional second in 2012.
http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/

Google did something different to get the extra second in:
http://googleblog.blogspot.de/2011/09/time-technology-and-leaping-seconds.html

Most devices probably don't even know about the leap second coming as
that would require a firmware upgrade.


Karsten

2015-01-25 16:19 GMT+01:00 Mike. <the.lists () mgm51 com>:
On 1/25/2015 at 9:37 AM Jay Ashworth wrote:

|This June 30th, 235959UTC will be followed immediately by 235960UTC.
|
|What will /your/ devices do?
 =============


I've always wondered why this is such a big issue, and why it's done
as it is.

In UNIX, for instance, time is measured as the number of seconds
since the UNIX epoch.  imo, the counting of the number of seconds
should not be "adjusted", unless there's a time warp of some sort.
The leap second adjustment should be in the display of the time,
i.e., similar to how time zones are handled.


fwiw





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