Does the 45 second timer keep running if I switch tabs?

Yes. It counts against the real clock, so switching tabs or returning after a browser pause shows the correct remaining time. Keep the tab open for the finish sound and notification.

How do I start the 45 second timer?

It loads ready to go — just press Start (or the spacebar). It will play the selected sound when time is up and can show a notification if notifications are allowed.

45 Second Timer — online, fullscreen, no ads

About the 45 second timer

This page loads a ready-to-go 45 second timer. Press start and it counts down with big, clear digits, then alerts you with a sound and a notification. Use fullscreen for a classroom or across the room. No ads, no sign-up, and offline support after the page has been cached.

What this preset means

Detail	Value
Loaded duration	45 seconds (45 seconds).
Best fit	Longer intervals, a wall sit, or a short timed task.
Need a different length?	Shorter: 30 Second Timer. Longer: 1 Minute Timer.

Clockfresh stores the target finish time instead of relying only on counted ticks. If the browser pauses the page in the background, the display catches up from the real clock when the page runs again.

Questions

Does the 45 second timer keep running if I switch tabs?: Yes. It counts against the real clock, so switching tabs or returning after a browser pause shows the correct remaining time. Keep the tab open for the finish sound and notification.
How do I start the 45 second timer?: It loads ready to go — just press Start (or the spacebar). It will play the selected sound when time is up and can show a notification if notifications are allowed.