Same problem here except it's a radio-controlled wall clock. It's the large one in this picture on
NIST.GOV website. (which is the radio signal source.) The face of the clock says Springfield radio controlled clock but Googling that didn't locate the manufacturer's instructions.
When I got up this morinig it was an hour slow. This afternoon when I came in from digging stumps, my wife had it apart and had turned the hands to the correct time. Now after she reassembled it, its running like mad and gaining an hour so now when it calms down it will show an hour fast.
I wonder if somebody at NIST programmed the DST conversion a week early - then reversed it this afternoon.
Update: Now a half hour after the adjustment, it shows the correct time. Stay tuned for updates ....
Update some more:
Mom lived to 98. At her request we kept her in her own home for her last years and hired caregivers, essentially running a one-customer rest home. Despite everyone's best efforts it was continual chaos. This clock was a small part of the chaos. Mom's on-call handyman who was the first line of go-to made a small fortune maintaining it. Then she would call me and ask me to reset this clock because 'Jim can't seem to get the hang of it'. I refused; the clock was an expensive mistake in the first place and I didn't want anything to do with it when it kept resetting itself.
I never should have brought that clock over here to the ranch after Mom was gone. Now the chaos has followed me here.