ECN Forum Forums General Topics of the Trade General Discussion Area You ever get one of these calls?

Ah, yes, the "fast" clock...most clocks pace themselves on the frequency of the electrical service. A transient spike can be "seen" as another cycle. When there is something regularily throwing such transients on the line, the clock runs fast.
With that degree of "fast time," I'd look for something electronic.....like a furnace igniter.