[time-nuts] Time source for indoor standalone PC

Tom Van Baak tvb at LeapSecond.com
Fri May 17 16:33:59 EDT 2013

> Even something as simple as a Chronodot will hold to a few seconds a year.


Are you sure? My understanding is that the Chronodot is based on the DS3231. Quoting http://datasheets.maxim-ic.com/en/ds/DS3231.pdf we read:

    The DS3231 is a serial RTC driven by a temperature compensated 32kHz crystal oscillator. The TCXO provides a stable and accurate reference clock, and maintains the RTC to within ±2 minutes per year accuracy from -40°C to +85°C.


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