Does the countdown update in real time?

Yes, the countdown updates automatically every second; you can watch the remaining time live without needing to refresh the page.

What happens if the target date is in the past?

If the target date and time is in the past, the countdown shows that it's no longer active and displays zero remaining time.

Does it work correctly across different time zones?

The target date and time is interpreted according to your browser's local time zone; as long as you use the same device's time zone both when entering the target and when watching the countdown, the calculation will be accurate.

Can I create more than one countdown?

Right now this tool shows a countdown to a single target; if you want to count down to a different date, you can update the target date and time to start a new countdown.