24 Hour Countdown Timer
Pick your target date and time and the countdown starts immediately — tracking days, hours, minutes, and seconds until the moment you're counting toward. Free, instant, and works on every device.
🎉 Time's up!
How to use the 24-hour countdown timer
Type an optional event name, pick a target date and time, then press Start Countdown. The display updates every second, showing exactly how many days, hours, minutes, and seconds remain. The countdown continues running in the background if you switch tabs, and recalculates correctly if you navigate back.
What people use this countdown timer for
- Product launches: Build pre-launch excitement with a ticking countdown embedded or bookmarked on your team's board.
- Personal deadlines: Make abstract future dates feel real and urgent by seeing them tick down in seconds.
- Events and travel: Count down to a wedding, concert, holiday departure, or arrival.
- Work & business: Sales end times, submission deadlines, sprint reviews — anything where the clock is the point.
Can I use this for more than 24 hours?
The "24 hour" in the name refers to clock format, not a limit. The timer displays days separately and counts down to any future date you choose — whether that's 3 hours from now or 300 days away.
24-Hour Countdown Timer Questions
How do I set a 24-hour countdown timer to a specific time?
Pick a target date and time using the inputs above, then press Start Countdown. The timer calculates the exact seconds remaining and counts down in real time.
Can I use the countdown timer for an event days away?
Yes — the display shows days, hours, minutes, and seconds, so it works for events a few hours away or several months away.
Does the countdown continue if I close the browser tab?
The countdown is calculated from the target datetime, so reopening the page shows the accurate remaining time. A sound alert only plays if the tab is open when the timer reaches zero.
Can I share my countdown with someone else?
The target date is stored locally in your browser. To share, note the exact date and time and send the link to this page — the other person can enter the same target and get the same countdown.
More timers worth a look
7 Minute Timer
The original 7 minute countdown for workouts, breaks & timeouts.
Open tool → KitchenOnline Egg Timer
Soft, medium or hard — a kitchen-ready egg countdown with presets.
Open tool → QuickTimer for 100 Seconds
An exact 100-second countdown for drills and quick tasks.
Open tool →