Do outlet timers really save money?

Do they really save money? Outlet timers are a small box that has a rotary dial on the front with clock numbers and with small pins, You press down the pins at the times when you want the device to turn on or leave up the pins when you want the device to kick off. You plug anything into that box and the device... show more Do they really save money?

Outlet timers are a small box that has a rotary dial on the front with clock numbers and with small pins, You press down the pins at the times when you want the device to turn on or leave up the pins when you want the device to kick off. You plug anything into that box and the device would come on at the times that you set it to come on and go off at the time that you set it to go off. These outlet times makes the outlet active at certain times and inactive at other times. They also have them with a digital clock rather than a rotary dial, but are not that common however.
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