Date tools

Countdown Calculator

Count down to a future date and time.

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What this tool helps you find

Choose a target date and optional local time. The remaining days, hours, minutes, and seconds update in your browser once per second.

Formula

Remaining time = target timestamp − current timestamp.

Worked example

A target 1 day and 2 hours away displays 1 day, 2 hours, 0 minutes, and 0 seconds.

Common mistake

The chosen time is interpreted in the device’s local time zone. A target that has already passed shows that it has passed.

When to use it

Track time remaining before an event, deadline, trip, or personal milestone.

Questions and answers

Does the countdown update live?

Yes. It refreshes every second in your browser.

Which time zone is used?

The selected date and time are interpreted in your device’s local time zone.