Hi Pat,
The minute hand on your clock has prbably slipped on its collet. The only real repair is to remove the hand reposition it on the collet and re-rivet it.
clockdoctor
October 2010
explain this to me how can a STOPPED clock CATCH TIME UP ?
wirecutterman
September 2010
When the clock strikes move the minute hand to the correct position hr or half hour stop the clock wait while the time catches up, and then restart the clock it will work correctly.
anon
September 2010
I can answer this question...
My clock chime 6 minutes before the hour and quarter and so on, what can I ?