10-minute timer with alarm
Start a 10-minute timer (600 seconds) with an alarm. Pause, reset, add a minute or use fullscreen. Test the sound before starting.
Timer controls
This timer starts at 10 minutes (600 seconds). Press Start when your task begins. Pause keeps the remaining time; reset restores the starting duration. Use +1 minute to extend a session. Save a named preset to reuse this duration.
How do I enter a duration?
The three fields are hours : minutes : seconds. For 90 minutes, enter 01:30:00. Pasting 01:30 means 1 minute and 30 seconds. Check the field labels before pressing Start.
Sharing
Choose a countdown type, name, target and time zone, then create a link. Each recipient uses the same fixed target. A later visit does not restart it. Editing requires a new link; there is no host control or live group pause.
Shared countdown timer & days until
Sound and browser limits
Browser alerts need an open tab and device support. Sleep, muted audio or a closed browser can prevent an alert. Calendar events have no alarm. This tool uses your device clock; clock errors can cause differences between recipients.
Storage preferences
Allow saving to keep presets, events, language, region and appearance in this browser. Without permission, presets and events last for this page visit. This tab keeps active timers, those preferences and drafts for language changes. Clearing browser data removes saved data. No account or cross-device backup.