Question Alarm clock not working

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lendawg

Senior Member
Dec 31, 2012
772
238
OnePlus 9 Pro
For some reason my work alarm isn't working. If I set an alarm for an hour or some other random time it works but seems to stop working at night while the phone is idle. Anyone have any idea how to fix this?
 

terlynn4

Senior Member
Aug 18, 2012
432
235
Fort Worth, TX
Nexus 9
OnePlus 9 Pro
Are you using a 3rd party alarm app? Make sure battery optimization for the app is set to "do not optimize". That setting sometimes turns itself back to "smart optimization" after updates & my alarm quits working.

If that doesn't work, under battery optimization, menu (three dots), advanced, there's "sleep standby optimization" which puts apps to sleep when you sleep... Try turning that off.