Countdown Timer
Set a target date and time, then watch a live countdown showing days, hours, minutes and seconds.
How to Use the Countdown Timer
Pick a future date and time, then click Start Countdown. The timer will display a live countdown showing days, hours, minutes and seconds remaining until your target moment.
Ideas
- Events — count down to a birthday, wedding, or holiday
- Deadlines — track time remaining for project submissions
- Launches — create excitement for product releases
- Personal goals — visualize time until a milestone
Frequently Asked Questions
Does the countdown continue if I close the tab?
No. The countdown runs in your browser tab and stops when the tab is closed. It will not persist across sessions.
What happens when the countdown reaches zero?
The timer stops and displays a "Time's up!" message. There is no audio alarm — it is a visual indicator.
Can I set a countdown for a past date?
No. The tool only accepts future dates and times to start a countdown.
How accurate is the timer?
The timer updates every second using JavaScript intervals. It is accurate to within one second.
More Date & Time
Date Difference Calculator
Calculate the exact difference between two dates in years, months, days, weeks, hours and minutes.
Open tool →Timezone Converter
Convert times between timezones instantly. Supports 28+ world timezones with DST handling.
Open tool →Stopwatch
Precise online stopwatch with start, stop, reset and lap time recording. Centisecond accuracy.
Open tool →Pomodoro Timer
25-minute work and 5-minute break cycles with progress bar, session counter and phase tracking.
Open tool →Week Number Calculator
Find the ISO week number, day of year, days remaining, quarter and more for any date.
Open tool →Date Formatter
Format any date in 12 patterns including ISO 8601, US, EU, RFC 2822, Unix timestamp and relative.
Open tool →