Timer that alerts when it hits zero.
A countdown to any date and time you set. Updates live in the browser.
Handy for deadlines, launches, birthdays, or celebrations.
The countdown recalculates from your device's clock each time the page updates, so it stays accurate even if you leave the tab open for hours or come back to it the next day.
Pick a target date and time; the timer shows days, hours, minutes, and seconds remaining.
Once the page has loaded, yes — everything runs in your browser.
Right now the target is only set locally. Bookmark the page after entering your date to return to it.
The display updates to show the target time has passed rather than continuing to count into negative numbers, so it's clear at a glance the event has arrived.