倒计时器

新

可自定义的在线倒计时工具

效率工具

如何使用 倒计时器

  1. 1Enter hours, minutes, and seconds
  2. 2Click Start to begin the countdown
  3. 3Pause or reset at any time
  4. 4An alert sounds when time is up

关于 倒计时器

Set a precise countdown for any duration — from seconds to hours. The timer plays an alert sound when it reaches zero and displays a visual notification. Customize durations with presets or enter exact values manually.

常见问题

Does the timer work in background tabs?

The timer continues counting even when the tab is not in focus, thanks to the Web Workers API.

Does it make a sound?

Yes, an alert sound plays when the countdown reaches zero (if your browser allows audio).