For a 25-minute study session, choose the “25 min” preset and select “Start”. If you need a break, pause and resume when ready: the remaining time is preserved.
Result00:25:00
Online timer
Online countdown timer with pause, resume and an optional sound.
Time remaining
Choose a duration and start the countdown.
Choose a duration and start the countdown.
The values you enter stay on this page. Reloading or closing it clears them.
We count which tools are used most, without including entered values or file contents in the statistics. Privacy
How to use the tool
Set the duration
Set hours, minutes and seconds or choose a preset. The display immediately shows the duration.Start and control
Select “Start”, then use “Pause” and “Resume” to control the countdown.Sound and reset
Test the sound and check the volume before starting. “Reset” cancels the timer and restores five minutes.
Practical example
Limits and checks
Durations range from 1 second to 99:59:59. A device-clock deadline keeps the display aligned when you return to the tab; system-clock changes can affect it.
Sound requires browser audio support. A suspended tab may alert late: keep it open and do not rely on it for critical alarms.
Reset cancels the countdown and restores initial settings. Closing or reloading clears the timer.
Field ranges
| Parameter | Value |
|---|---|
| Hours | ≥ 0; ≤ 99 |
| Minutes | ≥ 0; ≤ 59 |
| Seconds | ≥ 0; ≤ 59 |
Frequently asked questions
Will the timer alert me if I close the tab?
No. Keep the page open; if the browser suspends it, the alert may also be delayed.
Is this data saved?
The values you enter stay on this page. Reloading or closing it clears them.