Setting Your Online Timer for 12 分鐘
This page makes it simple to set a countdown timer for 12 分鐘. The duration is pre-filled. Just click 'Start Timer' to begin. You can customize the sound and get alerts when time is up.
Getting Started: A Step-by-Step Guide for this 12 分鐘 timer.
- Set Duration: Input the desired hours, minutes, and seconds for your timer. For this page, it's preset to 12 分鐘.
- Name Your Timer (Optional): Click on the default name to give it a custom label like "Work Break" or "Cooking Time".
- Start and Pause: Click the green Start button to begin the countdown. The button will change to a yellow Pause button. Click it to halt the timer. Clicking Start again resumes it.
- After Zero: Once the timer reaches 00:00:00, a sound will play, and it will start counting *up*, showing "Time exceeded by...". You can pause and resume this upward count.
- Reset: Click its Reset button to return the timer to its initially set duration, ready to be started again. This works whether the timer is counting down, counting up, or paused.
進階功能與工具
- Session Restore: If you close your browser, the timer's state (including running time and exceeded time) is saved. Upon your return, you'll be prompted to restore it. Time elapsed while the page was closed will be accounted for.
- 亮暗模式： 使用太陽/月亮圖標切換主題，以獲得舒適的觀看體驗。
- Fullscreen Mode: Click the fullscreen icon for a distraction-free view of your timer.
- 聲音切換： 使用聲音圖標 (🔊/🔇) 來靜音或取消靜音計時完成提醒。
常見問題與解答（FAQ）
How accurate is the 12 分鐘 timer?
The timer uses your browser's internal clock and JavaScript's `Date.now()` for accuracy. Display updates frequently. While very precise for web-based applications, for critical life-dependent timing, dedicated hardware is always recommended.
如果我關閉瀏覽器會怎麼辦？
Your timer's set duration, name, and running state (including any exceeded time) are saved in your browser's local storage. When you reopen the page, you'll be asked if you want to restore it. If the timer was running, the time passed during closure will be accounted for.
我的計時器資料是私密的嗎？
是的。所有計時器資料都存儲在您的瀏覽器本地，並不會傳送到任何伺服器。