Countdown Calculator
Track the time left until your target date with a live countdown
Enter a target date and time — an exam, a birthday, a trip, a wedding — and this tool shows the time remaining (or elapsed) in days, hours, minutes, and seconds, refreshing every second. Add an event name and you can copy a one-line summary of the countdown, ready to drop into social media or your notes. All calculations run in your browser, and the dates or names you enter are never sent to a server.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter your target date and target time.
- Optionally add an event name so you know what the countdown is for.
- Watch the day count and the day/hour/minute/second countdown update in real time.
- Use the copy button to grab the summary text and share it.
FAQ
- What happens if I enter a date in the past?
- The result flips to a D+ count, showing how much time has passed since the event.
- Does the countdown stop if I switch to another tab?
- Browsers may throttle timers on inactive tabs, so updates can pause. When you come back to the tab, it resyncs to the correct time.
- Is the date information I enter saved?
- No. Everything is calculated in your browser, and nothing is transmitted or stored.