Countdown Timer
A live countdown to any date and time, updating every second, with the exact target shown underneath.
How this works
Set a target date and time, and the four numbers above tick down every second: days, hours, minutes and seconds remaining. The summary underneath states the exact target, including the day of the week, so there is no ambiguity about which date the countdown points to. If the date you enter has already passed, the tool switches to reporting how long ago it happened instead.
The target time is read in your own device's clock and time zone. If you are coordinating a countdown with someone in a different time zone, work out their local time first using the Time Zone Converter, then enter that converted time here.
What people use a countdown timer for
Common uses include counting down to a wedding, a flight, a product launch, an exam, a deadline at work, or a holiday. Giving the countdown a label, such as "my flight" or "the deadline," makes the summary read naturally, but the label is optional and the countdown works the same without one.
Why the numbers reset instead of adding up
Hours, minutes and seconds each reset to zero and roll over, the same way a clock does. 90 minutes remaining is shown as 1 hour and 30 minutes, not 90 minutes, so the four numbers together always describe one single span of time rather than four separate counts.
Common questions
Get the most from this countdown timer
A well-set countdown timer keeps everyone synchronized, whether you're launching a product or counting down to a holiday. This free countdown timer updates every second and works entirely in your browser — no account, no downloads. Use it for exams, deadlines, live streams, or fitness intervals; the large digits stay readable from across the room. Because this countdown timer runs on your device clock, it stays accurate even if your connection drops.
For shared events across time zones, convert the target moment first, then paste it into the countdown timer. The Wikipedia article on time zones explains why the same instant reads differently around the world. Bookmark this countdown timer for birthdays, anniversaries, and launches — it's free and always ready.