I have have this for over a year now . a magnificent clock . no problem at all . if we power go out ... it still have the correct time when the power come come back on . Power glitch do not mess it up . Mine come with a precise time-set function , which mean if the clock 's preset time be off , it can be easily correct . I adjust the time once in the begin to fine tune the minute so it would coordinate with the tv set . it be a good thing to have a Set & forget clock . automatically deal with Daylight Savings Time . with it be large 2 '' red led number I be able to see the time again . Perfect for older folk like I who have problem read small number .