NovaTimeZone's countdown timer runs entirely in your browser with no installation required. It's accurate to the second and works even when the tab is in the background.
Does the timer work offline? ▾
Yes — the countdown timer runs entirely in your browser and does not require an internet connection after the page has loaded.
Will it alert me when it reaches zero? ▾
Yes — when the countdown finishes, the timer flashes and plays an audio alert via the Web Audio API (no extra permissions needed).
What is the maximum duration? ▾
You can set any duration up to 99 hours, 59 minutes, and 59 seconds.
Can I pause and resume? ▾
Yes — click Pause at any time and Resume to continue from where you left off.