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Re:Ring Counter Clock: still running after 40 years by SagelyGuru on Wednesday November 02, 2011 @09:28AM (#3186529)
Beautiful object!

However, it must be by several seconds out by now. There were several 'leap seconds' introduced since 1970.

Re:Ring Counter Clock: still running after 40 years by T-hawk on Wednesday November 02, 2011 @11:38AM (#3187267)
It has switches and circuitry to set the time. Presumably he sets it for daylight savings changes, at the very least. And the page says it was turned off at least twice. It's not meant to keep a perfectly accurate count of time over 40+ years.