Re: problem with sntpclock

On Wed, Jul 10, 2002 at 06:27:37PM +0000, Thorsten Glaser wrote:
> begin  electrogrammati illius D. J. Bernstein
> 
> >Thorsten Glaser writes:
> >> Without the rdate patch AND the leapsecs file, the Unix clock is set to UTC,
> >
> >No. The time_t used by xntpd and other leap-second-ignorant applications
> >is not UTC. It jumps backwards. It cannot be reliably converted to UTC,
> 
> Uh, sorry, yes, I forgot that. Is "pseudo-UTC" or "NTP" better?

xntpd notwithstanding, NTP is reset by UTC. Thus, although NTP has no
history of leapseconds since its timescale is reset when UTC leaps, NTP
time is not 'pseudo-UTC' at all. In view of the different ways time
is handled in the UNIX world, NTP's strategy of letting the OS/apps
determine leapseconds is not completely insane.


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