Shared countdown timer & days until
Create a shared countdown timer or days-until link for an event. Everyone uses the same target date, time and time zone. No account required.
How to use
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.
Date calculation
New events can follow the device time zone. Uncheck that option to fix a zone, and search by city or IANA name. Shared links pin the zone at creation. A running countdown keeps its target when the device zone changes. Daylight saving follows the selected zone.
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.