I have samsung 8+ and an alert keeps going off rvery hour even thou no alarm is set

[Android Central Question]

Annoying alert that sounds like a siren keeps going off every hour while no alarm is set

 

[B. Diddy]

Welcome to Android Central! Is it at the top of every hour? Does it happen in Safe Mode as well? https://support.t-mobile.com/docs/DOC-34283