>How many minutes, hours, or days of "holdover" with reasonably correct >time you may get depends on the quality of the local clock, the >stability of the temperature, the phase of the moon and the whims of the >gods!
We can at least do a bit of arithmetic. There are 86400 seconds in a day. If your clock is off by 11 ppm, it will drift 1 second per day. If your machine is in an airconditioned machine room, the average temperature is probably pretty stable. I'd guess a second per week would be conservative. If your machine is in an environment with poor temperature regulation, the day to day average temperature is probably the important consideration. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
