Setting Your Online Timer for 18 分钟
This page makes it simple to set a countdown timer for 18 分钟. 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 18 分钟 timer.
- Set Duration: Input the desired hours, minutes, and seconds for your timer. For this page, it's preset to 18 分钟.
- 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.
高级功能与工具
- 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.
- 浅色与深色模式： 使用太阳/月亮图标切换主题，以获得舒适的观看体验。
- Fullscreen Mode: Click the fullscreen icon for a distraction-free view of your timer.
- 声音切换： 使用声音图标（🔊/🔇）静音或取消静音计时完成提醒。
常见问题解答（FAQ）
How accurate is the 18 分钟 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.
如果我关闭浏览器会发生什么？
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.
我的计时器数据是私有的吗？
是的。所有计时器数据都存储在您的浏览器本地，不会发送到任何服务器。