In message <[EMAIL PROTECTED]>, "Poul-Henning Kamp" writes:
>In message <[EMAIL PROTECTED]>, "M. Warner Losh" writes:
>
>>Can't you recover the time by tracking multiple chains and using the
>>relationship between them to come up with at least small number of
>>possible seconds?  Hasn't the US started broadcasting data that can be
>>used to know which second you are at?
>
>This is called "Time Of Coincidence" and it works generally OK.

I should add that "TOC" is an overloaded term here: it's used
both about when a chain coincides with a UTC second and when
it does with another chain.

All chains started at the top of the second 1958-01-01 00:00:00 UTC
so you can just calculate forward using the gri.

Remember leapseconds.

- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED]         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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