A digital clock radio gains about a minute a day.
I thought they were locked onto the ac mains frequency of 50 Hertz, which is supposed to be very accurate and very steady.
Am I wrong here?

Is there something inside the unit I can adjust or place.
It only cost me $10 bucks, but I'm worried of buying another unit and maybe it goes too fast as well.
Perhaps my answer could be a hunt in Garage Sale for a couple of bucks.
Would rather realign my unit for greater accuracy if someone knows how its done.
Then I wouldn't have to turf it out and wasted my ten bucks.

This ain't the 1st time I've had a clock radio what ran too fast.