By default, Timer alerts will automatically stop after a few beeps. Optionally, you can set your timer alarms to beep continuously until you manually turn it off by doing the following:
- In List View, tap the icon in the top right corner (looks like a gear).
- Under Settings you will find a title called “Continuous Awake”. Slide the button to be green (On).
This will extend the alert when the Timer runs out until you dismiss it.