00:00:00.00
Space to start or pause · L to mark a lap
Give each player a separate countdown with the same starting minutes. Start a side and tap its clock to pass the turn to the other player. Pause both clocks when needed, reset a game, and watch for the side that reaches zero.
A focused home for timers, clocks, classroom activities and quick picks. Open a tool and get moving — no account, no waiting.
Thirty-two lightweight tools. One quick search.
Chronos processes names, settings and selected videos on your device. These tools do not require registration. Keep the page open while a timer or alarm runs; browser background limits or a sleeping device can delay a signal.