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.

In Europe where the chains have 4 digit GRIs it works much better
because most of the chains were chosen as prime numbers so they
only coincide very seldomly.

-- 
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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