Dave wrote:
> I have a requirement where I need two Suns (both Netra T1s) to have
> their clocks close to each other during an experiment that lasts 4
> hours. During this time, neither Sun will have internet access and they
> will not be networked to each other.

Ick.

>
> I suspect if I sync them by NTP before the experiment starts, then they
> will not drift by more than 500 ms over a 4 hour period. Does that seem
> reasonable? Has anyone actually ever made medium term (few hours)
> stability measurements of the clocks in Suns?

It's possible... but too many variables.

If there was some way to sync to a local "accurate" clock for each
that would help. I know that's not much help.