Set a countdown in seconds or minutes and run it in your browser. Pause, resume, or reset it. Background browser throttling may affect precision when the tab is inactive.
Enter a duration from one second up to seven days. The timer uses the browser clock and updates while the page is open. Pause stores the remaining time and resume continues from it.
Background tabs and device sleep can delay visual updates. This timer is for everyday reminders, not precision or safety-critical timing.
No. The timer runs in the current tab and is not synchronized or saved.
Yes. Pause stores the remaining duration; Start / resume continues it. Reset clears the timer.
A browser notification appears only if permission was previously granted; inactive tabs may be throttled.