How can I delete ALL alarms in the stock Clock app?
I see that you can delete them one-by-one, but I have 50+ (created regularly with voice commands), and I'd like to get rid of them in one action.
I deleted all alarms in Android Jellybean 4.1.1 by performing the following operations in Settings > Apps > All > Clock:
Force stop
Clear data
Clear cache
YMMV
Incredibly, this is still an unaddressed issue in 2022. I have noticed that it's possible to ask google assistant to delete all of your active alarms -- meaning the ones that are scheduled to ring.
So one inconvenient way to deal with this, would be to activate all the alarms manually (which is a bit faster than deleting them manually) and then ask google assistant to 'delete all of my alarms'.
Careful btw: asking Google assistant to 'delete all of my inactive alarms', will actually delete only your active ones (which is how I discovered this).
At the top of the page there is a garbage can. You can click on the can, which will show a multi select option, which lets you mark each alarm for deletion.