Set a timer for 19 min. Start the online timer set for 19 minutes. You can also add or subtract time. Sound alarm notification is optional.
How to use 19 minutes timer
The timer will tell you when your 19 minutes has run out. It will keep counting upward when time has run out.
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.