Set a timer online instantly.
Use it as a countdown timer for minutes or hours with sound alerts.
Set a timer online in seconds with AlarmO'Clock. Choose any duration — from a few seconds to hours — or start instantly using one of the quick timer presets. When the countdown ends, you’ll hear an alert sound, and you can easily add extra time if needed.
Switch to stopwatch mode to track elapsed time and record lap splits. Perfect for workouts, cooking, study sessions, presentations, or any task where precise timing matters.