Countdown Timer
Pick any future date and time and watch the remaining days, hours, minutes and seconds tick down live. Perfect for launches, birthdays, deadlines and holidays.
How it works
The tool stores your target moment as a timestamp and, every second, computes the difference to now: total seconds divided into days (86,400 s), hours (3,600 s), minutes and seconds. Because it uses the clock difference rather than counting ticks, it stays accurate even if the tab throttles.
Frequently asked questions
Which time zone does it use?
Your device's local time zone — the same one your calendar uses. The picked date-time is interpreted locally.
Does it keep running if I switch tabs?
Yes. It recalculates from the system clock every second, so background tab throttling doesn't make it drift; it catches up instantly when you return.
Is the countdown saved if I reload?
No — reloading resets the tool. Just pick the date again; it takes two seconds.