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Posted to sci.electronics.repair,alt.engineering.electrical,alt.horology,uk.d-i-y
Michael A. Terrell
 
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Default Accuracy of UK power grid time control?



Mathew Newton wrote:

Roger Mills wrote:

My understanding is that the frequency is allowed to fluctuate by a small
amount (don't know how much) but that, over a 24 hour period, exactly the
right number of cycles will be delivered. So your clock should at least be
exactly right once per day.


Even a stopped clock doubles that... ;-)

Mathew



Not if it's digital.


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