Timer set for 30 minutes. Simply press start to activate the 30 minutes timer. Alarm is optional. Add or subtract minutes.
The timer will tell you when your 30 minutes has run out. It will keep counting minutes and seconds upward instead.
How to use 30 minutes timer
Sound notification (alarm) is optional. You can keep the timer running in the background if you for example open a new tab. If you have sound notification the timer will tell you when time is up.