Online Timer
Use this timer when you know how long a task should take and want an alert at zero.
Online Timer
Set a countdown timer online in seconds — free, no sign-up, no download. Pick your time, choose a sound, and let it run.
Set your timer
Timer 1Common timer lengths
Timer 1
Ready to start
Your timers
- 0102:00:00
Keep this tab open and your device awake. The countdown stays accurate when you switch tabs; your browser and device must allow sound for the alarm to play.
A timer in your browser
Choose a time from 10 seconds to 24 hours, press Start, and get an alarm at zero. It works on a laptop, Chromebook, tablet or phone, with nothing to install. Use full screen when people need to see the countdown from across the room.
How to use this online timer
- 01
Set your time
Enter hours, minutes and seconds, or choose a preset such as 5 minutes or 2 hours.
- 02
Choose your alarm
Pick a sound and press Test to check it, or choose Silent for a visual finish.
- 03
Start the countdown
Start a timer on its own, or add more and run them together or in sequence. Pause and Reset remain available for each timer.
- 04
Go full screen
Use the full-screen button to show large digits on a TV, projector or classroom display. Press Escape to leave.
What people use it for
Teachers and classrooms
Give reading, quizzes or group work a visible end time. Full screen puts the countdown on a projector, while Silent lets you finish without a bell.
Cooking
Set six minutes for eggs, or a longer timer for baking and resting meat. Leave the tab open while following a recipe elsewhere; the selected sound plays at zero.
Workouts and intervals
Time a plank, stretch or rest period. The countdown is recalculated from the clock, so switching tabs does not add drift to the interval.
Study and focus
Try a 25-minute focus block followed by a five-minute break. A visible countdown makes the end of each session easy to judge.
Meetings and presentations
Give speakers a fixed slot or time each agenda item. Put the display full screen on a second monitor so the remaining time is readable from a distance.
Meditation and breathing
Choose Silent for a quiet five-minute reset or breathing session. The numbers still reach zero without interrupting the room with a chime.
Timer, stopwatch or alarm clock?
Online Stopwatch
Use the stopwatch to measure how long something actually took, counting up from zero.
Alarm Clock
Use the alarm clock when you want an alert at a specific time of day.
Online timer questions
Is this online timer free?
Yes. You can set as many timers as you need without an account, download or payment.
Do I need to install anything or sign up?
No. It runs in your browser on a phone, tablet, laptop or desktop. Open this page, enter a time and press Start.
How do I set an online timer?
Choose a duration and alarm before starting.
- Enter hours, minutes and seconds, or select a preset. Use Edit to save your own ten presets on this device.
- Choose an alarm sound and press Test, or select Silent.
- Press Start. Use Pause and Resume as needed; Reset returns to the original duration.
Can I set a timer for more than an hour?
Yes. Set any duration from 10 seconds to 24 hours using the hours, minutes and seconds fields. The 2-hour preset is also available.
What happens if I switch to another tab?
The timer keeps counting down while this tab stays open and your device stays awake. It uses the target time rather than adding interval ticks, so background throttling does not slow the countdown. Your browser must allow audio for the alarm to sound.
Does the timer keep running if I close the tab?
No. Closing this tab clears the timer and prevents its alarm from playing. Keep the page open until the countdown finishes.
Can I run more than one timer at once?
Yes. Click Add timer on this page to create another timer. Choose One by one to start each timer manually, Together to start them at the same moment, or In sequence to start the next timer when the previous one ends. Use the arrow buttons to change their order.
Can I save my own timer presets?
Yes. Click Edit above the preset buttons, enter ten different durations in whole minutes, then click Save presets. The values stay in this browser on this device; closing the tab does not remove them.
Can I use it full screen for a classroom or meeting?
Yes. Press Full screen above the display to show large digits, then press Escape to return to the page.