[LEAPSECS] Crunching Bulletin B numbers (POSIX time)

Joe Gwinn joegwinn at comcast.net
Sat Feb 19 17:38:34 EST 2011

At 5:13 PM -0500 2/19/11, Tim Shepard wrote:

> >

>> this is why leap seconds announced ten years in advanced

>> are important: they allow for a stand-alone machine, albeit

>> one that only needs to have it's software upgraded once in

>> ten years.



>A stand alone machine is going to have its clock drift by more than a

>few seconds over 10 years. Leap seconds are in the noise compared

>to errors due to accumulated drift of standalone machines.

Not necessarily. A Rubidium clock will take a few thousand years to
drift by a second. So, we cannot assume that isolated machines have
drifty clocks.

>If it has a way of receiving a time signal to stay synchronized, then

>it ought to have a way of receiving info about the leap seconds (if

>they even matter).

True. But then it isn't isolated.

Joe Gwinn


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