In a recent note, Hal Merritt said:

> Date:         Fri, 12 May 2006 15:45:10 -0500
> 
> Compare to most any industrial equipment (to include the MF) that uses time. 
> They almost always have a high quality clock that is accurate to milliseconds 
> per fortnight without any outside help.
> 
I have never seen a spec on the guaranteed accuracy of the TOD clock
standalone.  Have you a citation?  Has IBM ever in the lore
been known to replace one that was out of spec?  By how much?

Or do you mean with an ETR, in which case it's as accurate as
whatever it syncs to?

-- gil
-- 
StorageTek
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