計時器
一款可同時運行多個計時器的倒數計時工具。剩餘時間根據絕對結束時間計算，因此在背景分頁中也能保持準確。
No timers yet. Add one above.
使用方法
- Enter a label and hours/minutes/seconds, then Add timer. The countdown starts immediately.
- Each timer can be paused, resumed, reset or deleted independently.
- When a timer finishes it beeps and its card flashes.
注意事項
Remaining time is always computed as end time minus now, so timers stay correct in background tabs and across page reloads. The timer list is stored in this device's local storage and never sent to a server. Sound becomes available after you interact with the page, per browser rules.
常見問題
- Will it beep if I close the tab?
- No. The tab must stay open for sound. If you reopen it later, the timer correctly shows as finished.