Countdown Timer
Count down to any date. Add up to 5 named countdowns, saved across sessions.
No countdowns yet.
About the Countdown Timer
A countdown timer counts the remaining time until a specific target date and time. Under the hood it calculates the difference between the current Unix timestamp and the target Unix timestamp, then breaks that difference into days, hours, minutes, and seconds.
Because all dates are converted to Unix timestamps internally, the countdown is timezone-aware. If you set a countdown to "New Year 2025 in Tokyo," the timer will count down to the correct UTC moment for midnight JST (UTC+9).
Popular Countdown Use Cases
Product launches
Build anticipation with a public countdown to a release date
Project deadlines
Track days remaining until a sprint ends or a feature ships
Holiday planning
Count down to Christmas, New Year, Diwali, or any celebration
Contract expiry
Monitor days until a subscription, license, or agreement expires
Domain / cert renewal
Avoid lapses by watching exactly how much time remains
Conference dates
Share a countdown link with your team for an upcoming event
Countdown Math — How It Works
Remaining time = target_timestamp − current_timestamp (in seconds).
That number is decomposed: days = ⌊remaining / 86400⌋, then the modulo gives hours = ⌊(remaining % 86400) / 3600⌋, and so on. The timer updates every second using requestAnimationFrame or a 1-second interval.
Frequently Asked Questions
How many countdowns can I have at once?▼
You can create up to 5 named countdowns simultaneously. Each one can have a different target date and a custom label.
Can I count down to a time in a specific timezone?▼
Yes. When setting the target date, pick the timezone for the event. The countdown converts the target to UTC and counts down to that exact moment globally.
What happens when the countdown reaches zero?▼
The timer switches to "event has passed" mode and starts counting elapsed time since the event, so you know how long ago it occurred.
How do I get the Unix timestamp for my event?▼
The countdown tool shows the Unix timestamp for your target. You can also use the Date → Timestamp converter on the home page to get the epoch for any date.
Are countdowns saved between visits?▼
Yes — countdowns are saved in your browser's localStorage. They persist across page refreshes and browser restarts on the same device.