Pre ubiquitous internet with NTP - we ran special projects with Windows PCs - 
but time keeping was always a problem - we would use one of our embedded 
controls with line frequency time keeping - which is very accurate - the funny 
thing when power went off we used the same Dallas Chip as on the PC for time 
keeping.  Also the embedded control has to be set to UTC 0 no daylight savings.

Thomas D. Erb
o:        508-359-9684
p:        508-359-4396 x 1700
f:        508-359-4482
a:        97 West Street, Medfield, MA 02052 USA
e:         [email protected]
w:        www.electrictime.com<http://www.electrictime.com>
Tower & Street Clocks Since 1928

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