Online timer
Online countdown timer with pause, resume and an optional sound.
Set hours, minutes and seconds or choose a preset. Start the countdown, then pause or resume whenever needed.
Time remaining
Choose a duration and start the countdown.
Data is processed only on this page and is not sent to the server. Reloading or navigating away clears it.
Aggregate statistics: we count uses without storing inputs, files or personal identifiers in the counters. Privacy
Method, examples and limits
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.
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?
Data is processed only on this page and is not sent to the server. Reloading or navigating away clears it.