wrote in message
oups.com...
I just wired up an Intermatic T103 timer. I noticed after 12 hours
the timer seems to be moving to fast (12 hours registered about 13
hours on the timer). Could I have a wiring issue or is this just a
faulty clock timer? TIA.

That timer uses a simple synchronous clock motor timer that depends on the
60Hz AC power for accuracy. If the clock motor runs at all it is probably
keeping time. There is no "DST switch". I suspect an operator error.