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On Wednesday, March 16, 2005 1:31 PM,
Jared Sherman said:
> Craig, you might want to look for a freeware app called TimeRC3
> (.exe or .zip) which not only accomodates the propogation delays,
> but displays the delay times it finds on the main screen. Very
> slick and stable little app, and if you sync three or four times
> in a row and it shows only millisec delays each time...you can be
> pretty sure the clock is set better than you'll ever need to know.
> You can't "click" a button with the human hand and get that
> precision, much less read and note clock time that well.

Another free app that will keep your PC's clock synchronized is
"Dimension 4" (d4.exe), from Thinking Man Software. I've used it
for years to keep non-domain Windows boxes in synch and been
completely happy with it. It works in the background and doesn't
require much set-up, although you can take off the back and mess
with the wires (as it were) if you like. Get it at: www.thinkman.com

If you'd like to look into the gory details of allowing for time
sync propagation delays, see RFC 1129 (or the stripped down protocol
in RFC 1361) at http://www.faqs.org/ftp/rfc/rfc1129.pdf (or some
other RFC repository).

 -- Peter

   

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