According to user reports, it seems that the iPhone has some alarm clock problems. An alarm clock is supposed to be simple and straightforward. You set a time and it wakes you up at that time.

iPhone users are reporting abnormal behavior from their phones’ built-in alarm feature, with some alarms sounding off hours after the scheduled time and others not going off at all. A Reddit ...

However, one bug is eluding the Cupertino-based company. Reddit users are reporting issues with the alarm on their iPhone going off at the wrong time or not sounding at all. A user reported that ...

invest in a physical alarm clock or ask your Alexa or Google Home to wake you up. Your iPhone’s Do Not Disturb feature and the Ring/Silent switch have no impact on your alarms, so feel free to ...