Timer
Free online timer and stopwatch, no installation required. Support lap timing
About the Timer Tool
This tool provides two timer modes: Stopwatch for measuring elapsed time and Countdown for setting a target duration. Both modes support centisecond precision (1/100 second) for accurate timing.
Using the Stopwatch
Click Start to begin timing. Use Lap to record intermediate times without stopping the clock. Click Stop to pause, and Reset to clear. Lap times are displayed in a list with individual and cumulative durations.
Using the Countdown Timer
Set the target time in hours, minutes, and seconds. Click Start to begin the countdown. When the timer reaches zero, an audio alert will sound. You can pause and resume the countdown at any time.
Keyboard Shortcuts
Press Space to start/stop the timer. Press R to reset. These shortcuts work when the tool is focused and no input field is active.
▶How accurate is the timer?
▶Will the timer work in the background?
▶Can I customize the countdown alert sound?
▶Does the timer work offline?
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