[BC] clock software

[Brian Urban]

Nothing like the horses mouth for time info

http://tf.nist.gov/service/its.htm

Software to sync both WIN and MAC boxes to NIST.

See http://www.time.gov/about.html for links to both NIST and USNO time
clocks and software




On 2/3/06 7:35 AM, "Sherrod Munday" <smunday at srnradio.com> wrote:

> On Friday 03 February 2006 07:15, John Vodenik wrote:
>> Seems to me that back before the year end, someone put out a note about
>> some software that would keep your PC locked to WWV or something. ?Anybody
>> remember what that program was? ?I am looking for something to lock my
>> automation PC to either WWV or GPS.
> 
> If you're talking for a Windows box, you can always try 'Dimension 4'
> software.
> 
> The current version is available at http://www.thinkman.com/
> 
> It's free for personal use, but to use it in a for-profit environment it costs
> $10 per license (i.e. per machine).  Site licenses are available.
> 
> That being said, a prior version *IS* freeware.  And frankly, it does
> everything we need it to, so we run the prior version 4.1 instead of the
> current version.
> 
> There are many copies of 4.1 still out on the 'Net -- search for
> 'd4time41.zip' and grab a copy from an archive site.  (I couldn't find it on
> thinkman's site directly.)
> 
> Here's one site that has a link to a prior version.
> http://webinstituteforteachers.org/resources/software/TIME/
> 
> If you are using a *nix box, a few variants of 'ntp' (Network Time Protocol)
> software are available.
> 
> All the *nix clients and D4 rely on communicating with a number of
> network-connected time servers.  The ntp system is designed to account for
> latencies, jitter, etc. and is quite good.
> 
> To contrast them, the *nix clients apply a continual drift factor to the
> system clock, so that the time is always accurate.  The D4 program 'steps'
> the clock to whatever the time server reports *when* the program checks with
> the time server.  That is, if the time update interval is set to 15 minutes,
> every 15 minutes your PC clock will "jump" to the server's time, which can
> cause some weird results if you wait too long between updates.

-- 
Brian Urban
KUT Radio
University of Texas at Austin
Office 512-471-1085
Cell 512-940-4757