What a 120 seconds timer is good for
Rest between heavy sets, a rinse-and-hold in the shower, steeping a delicate green tea, or a short reset between tasks.
The countdown runs against your device clock, so it stays accurate if the tab is throttled in the background. At zero it fills the screen with a Stop button, plays your chosen sound, and vibrates on phones. Need several at once? The multi-timer runs them side by side.