Timer
This screen will let you start a countdown timer
At the top will be the clock with the current timer
Then 4 buttons
Start/Belay: Start/Stop the currently-entered timer
Delete: If the currently-entered timer matches a saved timer, the saved timer will be deleted
Reset: Set the currently-entered timer to 00:00:00
Save: Save the currently-entered timer
Then a number pad to enter a time
Then a list of saved timers. Clicking one will load that time
If you have enabled the Options\Behavioral\Notification setting, the timer will show in the Android notification with a Belay button to stop the timer