> HOwever as I mentioned, both hwclock and rtc determine > the drift whent he system is on, and the drift when it is off could be > different (usually temperature).
That's what I meant in previous post. Ntp can give me the reference to estimate the drift of RTC, but this estimate can be calculated during system up period. During system down drift can be totally different (i.e. because the weather changed). So by applying some corrections we can make more harm than good. What link did I delete? DS3231 eats 1000x more power than my current RTC. Marcin _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions