Switch between Stopwatch and Timer modes using the tabs. The Stopwatch counts up from zero with Start, Stop, Lap, and Reset buttons. Lap records split times while the stopwatch keeps running. The Timer lets you set hours, minutes, and seconds for a countdown. When the countdown reaches zero, an alert sound plays and the display flashes. Both modes provide precise timing with a clean, large digital display that works on any device.
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Frequently Asked Questions
How accurate is the online stopwatch?
The stopwatch uses JavaScript's performance timing and updates every 10 milliseconds, providing accuracy suitable for most everyday timing needs.
Can I record lap times?
Yes, click the Lap button while the stopwatch is running to record split times. All laps are displayed in a table below.
Does the timer make a sound when done?
Yes, the countdown timer plays an alert sound and shows a visual notification when the time reaches zero.