[ntp:questions] Leap seconds

Brad Knowles brad at stop.mail-abuse.org
Mon Jan 24 23:04:07 UTC 2005


At 1:36 PM -0800 2005-01-24, mayer at gis.net wrote:

>  NTP is the one that decides how much to change the clock and
>  tells the O/S. Moving the clock backward by 1 second, which is
>  in effect what a leap-second does, can have major negative effects
>  on systems that depend on the time being a monotonically increasing
>  variable.

	A leap second would never cause the time to be moved backwards. 
A leap second shouldn't ever cause the time to be jumped forwards, 
either.  It should simply result in an extra second that occurs 
during that minute.

-- 
Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.



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