How accurate is the timer?

The timer updates every 100ms (0.1 seconds), providing good accuracy for most purposes. For short durations (under 1 hour), accuracy is excellent. Over very long periods, browser timers may drift slightly, but accuracy is sufficient for general timing needs.

Can I set a timer for hours?

Yes! Enter minutes (e.g., 60 for 1 hour, 120 for 2 hours). The timer supports any duration in minutes and seconds. Very long timers (hours) work, but may have slight drift over time. For hours, enter minutes (60 minutes = 1 hour).

What happens when the countdown timer reaches zero?

When the countdown timer reaches zero, it stops automatically and displays 00:00.00. There's no audio alert—the timer simply stops. You can reset and start a new timer. For audio alerts, use desktop timer applications.

Can I use both stopwatch and timer at the same time?

No, you can use either stopwatch or timer mode at a time, not both simultaneously. Switch between modes using the radio buttons. When you switch modes, the current timer resets. For multiple timers, use multiple browser tabs or desktop timer apps.

Will the timer continue if I close the browser?

No, the timer stops when you close the browser tab or refresh the page. Timing is not persistent—it's reset when the page reloads. For persistent timers that continue when browser is closed, use desktop timer applications or browser extensions.

Stopwatch/Timer - Online Stopwatch Free

When to Use This Tool

Use this when:

You need to time activities, workouts, or exercises
You want to track elapsed time for tasks or projects
You need a countdown timer for cooking, presentations, or deadlines
You want to measure lap times or intervals during activities
You're timing presentations, speeches, or time-limited activities
You need to track time for productivity or time management
You want a simple timer without installing apps or software

Don't use this if:

You need multiple simultaneous timers or alarms (use specialized timer apps)
You require timer notifications when browser is closed (use desktop timer apps)
You need very precise timing for scientific or professional purposes (use specialized timing tools)
You want timer integration with other applications or systems
You require timer history or logging features

What is a Stopwatch & Timer?

A stopwatch and timer tool provides precise time tracking with lap recording, countdown functionality, and audible alerts. Our tool runs entirely in your browser — no accounts, no data collection, no server interaction.

Stopwatch and timer functionality is needed daily across many activities: timing presentations and speeches for practice, tracking workout intervals (HIIT, Tabata, circuits), timing cooking steps, measuring task duration for productivity analysis, timing exam practice sessions, and running meeting timers.

This tool is useful for athletes timing interval training sessions, presenters practicing speech timing, students timing practice exams, cooks managing multi-step recipes with precise timing, productivity enthusiasts using Pomodoro or time-boxing techniques, and meeting facilitators keeping discussions on schedule.

Compared to phone stopwatch apps (which require switching away from your work screen), physical timers (which lack lap recording and are easily misplaced), or online timers with intrusive advertisements, PureXio provides a clean, distraction-free timing experience directly in your browser tab.

The tool includes both stopwatch mode (count up with lap recording) and timer mode (count down from a set time with audible alert). The stopwatch tracks unlimited laps with split times and lap times, while the timer supports preset durations and custom input. The interface uses large, easy-to-read digits and works well on both desktop and mobile browsers.

Best for: stopwatch with lap recording and countdown timer with alerts. Large display, preset durations, unlimited laps. No ads, no tracking. Browser-based.

How to Use Stopwatch/Timer

Select mode: 'Stopwatch' to track elapsed time, or 'Timer' for countdown. For timer, set minutes and seconds using input fields

Click 'Start' to begin timing. Stopwatch counts up from zero. Timer counts down from set time. Click 'Pause' to pause, 'Reset' to reset

For stopwatch, click 'Lap' to record lap times while running. Review lap times in the list. Timer alerts when countdown reaches zero

Common Use Cases

Workout timing: Time exercises, rest periods, or workout sessions

Cooking timer: Set countdown timer for cooking, baking, or food preparation

Presentation timing: Track time for presentations, speeches, or time-limited talks

Productivity tracking: Time tasks, pomodoro sessions, or work intervals

Sports timing: Track lap times, race times, or athletic performance

Study sessions: Time study periods, breaks, or learning sessions

Meeting timing: Track meeting duration or time remaining for agenda items

Features

Stopwatch mode: Track elapsed time counting up from zero

Timer mode: Countdown timer with minutes and seconds

Lap times: Record and view lap times during stopwatch use

Precise timing: Updates every 100ms (0.1 seconds) for accurate timing

Start, pause, and reset controls for flexible timing

Time display in MM:SS.CC format (minutes:seconds.centiseconds)

100% private—all timing happens locally in your browser

Limitations & Constraints

Timer stops when browser tab is closed or page is refreshed—timing is not persistent

No audio alerts or notifications when timer reaches zero—visual only

Timer accuracy depends on browser performance—may drift slightly over long periods

Cannot set multiple timers simultaneously—one timer at a time

No timer history or saved timers—timing resets on page refresh

Troubleshooting

Timer or stopwatch doesn't start

Solution: Check that you clicked 'Start' button. For timer mode, ensure minutes and seconds are set (at least 1 second). Verify mode is selected correctly (stopwatch or timer). Try refreshing the page if timer is unresponsive. Prevention: Ensure timer settings are correct before starting.

Timer seems inaccurate or drifts over time

Solution: Browser timers may drift slightly over long periods due to browser performance. For short durations (under 1 hour), accuracy is good. For very long timers, slight drift is normal. Timer updates every 100ms—accuracy is sufficient for most purposes. Prevention: Understand that browser timers may have slight drift over very long periods.

Timer stops when I switch browser tabs

Solution: Some browsers throttle timers in background tabs to save resources. Timer may slow down or stop when tab is inactive. Keep the timer tab active for accurate timing. For persistent timing, use desktop timer applications. Prevention: Keep timer tab active for best accuracy.

Need audio alert when timer reaches zero

Solution: This tool provides visual timer display only—no audio alerts. When timer reaches zero, it stops and shows zero. For audio alerts, use desktop timer applications or browser extensions. Prevention: Use desktop apps if you need audio alerts.

Lap times not working or not recording

Solution: Lap times only work in stopwatch mode when timer is running. Click 'Lap' while stopwatch is running to record lap time. Lap times are displayed in a list. If laps aren't recording, ensure stopwatch is running (not paused). Prevention: Use lap feature only when stopwatch is actively running.