Duration mode
Enter hours, minutes, and seconds for a countdown from 1 second through 99:59:59.
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Timer
Set a timer to get started
Use the settings panel to configure your timer
Before relying on a timer, test browser sound and review its background behavior.
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Online Countdown Timer
Set a custom countdown up to 99 hours, 59 minutes, and 59 seconds, or count down to a target date and time. Choose a notification sound and use the controls for cooking, workouts, study, meetings, and other timed activities.
Custom durationTarget date and time27 soundsResponsive controls
Date & Time mode
Choose a future calendar target and view the remaining days, hours, minutes, and seconds.
27 notification sounds
Preview and choose from 27 sounds in the checked-in library. Audio depends on browser permission and device settings.
Display controls
Start, pause, and reset the countdown, then adjust the display, background, or fullscreen presentation.
Fullscreen and Wake Lock conditions
Keep this browser tab open while the countdown is needed. Fullscreen can request the Screen Wake Lock API when the browser and device support it, but the browser or device may release Wake Lock. Audio playback may require permission and can be limited by browser or device settings.
Timer presets
Open a preset page for a ready-to-use duration from 1 minute through 8 hours.
1 Minute
A one-minute countdown for a short task or interval.
2 Minute
A two-minute countdown for a small routine or reminder.
3 Minute
A three-minute countdown for a compact activity.
4 Minute
A four-minute countdown for short tasks that need a clear endpoint.
5 Minute
A five-minute countdown for a break, routine, or short activity.
6 Minute
A six-minute countdown for a short activity or interval.
7 Minute
A seven-minute countdown for a compact activity.
8 Minute
An eight-minute countdown for a quick activity.
10 Minute
A ten-minute countdown for a defined task or break.
12 Minute
A twelve-minute countdown for a short task or interval.
15 Minute
A fifteen-minute countdown for a moderate task or interval.
18 Minute
An eighteen-minute countdown for a defined activity.
20 Minute
A twenty-minute countdown for a longer task with a set endpoint.
25 Minute
A twenty-five-minute countdown commonly used for a Pomodoro work block.
30 Minute
A thirty-minute countdown for a substantial task or activity.
40 Minute
A forty-minute countdown for an extended activity.
45 Minute
A forty-five-minute countdown for an extended task or interval.
50 Minute
A fifty-minute countdown for a longer work or activity block.
60 Minute
A one-hour countdown for a meeting, activity, or longer task.
90 Minute
A ninety-minute countdown for an extended task or event.
2 Hour
A two-hour countdown for a long activity or project stage.
3 Hour
A three-hour countdown for a multi-stage activity.
4 Hour
A four-hour countdown for a long project or scheduled period.
8 Hour
An eight-hour countdown for a workday or other long scheduled period.
Use the timer
- 1. Choose a preset or enter a duration.
- 2. Select a sound and preview it.
- 3. Start, pause, or reset the countdown.
- 4. Keep the tab open until the timer is handled.
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Frequently Asked Questions About Online Timer
What timer presets are available?
Preset pages cover 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 15, 18, 20, 25, 30, 40, 45, 50, 60, 90 minutes and 2, 3, 4, and 8 hours.
Can I count down to a date and time?
Yes. Date & Time mode accepts a target date and time and shows the remaining days, hours, minutes, and seconds.
What is the maximum duration?
Duration mode accepts up to 99 hours, 59 minutes, and 59 seconds. Use Date & Time mode for a later calendar target.
Can I use the timer for Pomodoro sessions?
Yes. Choose a preset such as 25 minutes or enter a custom duration for work and break intervals.
Does the timer run when I change tabs?
The timer uses elapsed timestamps while its page remains open. Background tab updates and audio playback are subject to browser and device behavior, so keep the tab open and check the page for important timing.