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Date & time

Countdown Timer

Count down to any moment — a launch, a deadline, a holiday, the next weekend — with a live, second-by-second display.

Countdown Timer

Time remaining

0days
:
00hours
:
00min
:
00sec

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What this countdown does

Set any target date and time, give it a label, and the tool counts down the remaining days, hours, minutes and seconds in real time. When the target passes, the display flips to count up — handy for tracking time elapsed since a milestone. The page tab title is also useful as a quick at-a-glance reminder.

How to use the countdown timer

  1. Pick a target date and time. The picker uses your local zone, so what you type is what you'll experience.
  2. Optionally, give the countdown a label — "Launch", "Trip to Tokyo", "Submission deadline" — so the result panel reads naturally.
  3. Or click any of the preset chips for common occasions: New Year, Christmas, Halloween, the next weekend. The picker auto-fills with the next occurrence.
  4. Watch the seconds tick. If you reload, the timer keeps going from the same target — your input is preserved while the page is open.

How the countdown is calculated

Every second, the difference between the target instant and the current instant is computed in milliseconds, then split into days, hours, minutes and seconds. Both values use your browser's clock and local time zone, so the display always matches what your wall clock shows. After the target passes, the same difference flips sign and the display starts counting up.

When to use a countdown

Marketing teams use countdowns to build anticipation for launches and sales; project managers use them to keep a deadline visible during the final stretch; anyone planning a trip or holiday uses one to share the wait with friends and family. The presets cover the most universal occasions, but typing a custom date and label takes seconds and gives you a full event-specific timer.

Frequently asked questions

Will the countdown keep running if I close the tab?
No — closing the tab stops the visual countdown, but reopening it with the same target will just show the new remaining time. The math is always relative to your device clock, so a few hours away from the page doesn't desynchronise anything.
Does it count down to a specific time of day?
Yes. The picker is a full datetime field — pick the exact hour and minute. Useful for product launches that go live at 9:00 sharp, or for a midnight new year.
What time zone does it use?
Your browser's local zone. If you want to count down to midnight in Tokyo from Lisbon, convert the moment first (try our Time Zone Converter), then enter the resulting local time here. The countdown itself is just a difference, so it doesn't depend on a specific zone.
What happens after the target time passes?
The display flips to red and starts counting up — showing you how long ago the target was. Useful for "X days since launch" dashboards or simply seeing how long it's been since something happened.
Can I share a countdown link?
Not at the moment — the target stays in your browser only. The simplest workaround is to share the page URL plus the date and label; whoever opens it can paste in the same values and get the same countdown.
Does this run on a server?
No. Everything is computed in your browser, so private deadlines, internal launch dates and personal milestones never leave your device. The page also continues to work offline once it's loaded.
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