⏰ 在线闹钟Online Alarm Clock

使用说明与常见问题How-to & FAQ

「在线闹钟」是什么？What is the Online Alarm Clock tool?

在浏览器里设置闹钟：选择时间和铃声，到点响铃并闪烁标题，支持贪睡、多个闹钟、倒计时显示，设置会保存在本机。适合午休、做饭和学习提醒。Set alarms in your browser: pick a time and a sound, and it rings and flashes the tab title when due — with snooze, multiple alarms and a live countdown. Alarms are saved on this device. Good for naps, cooking and study breaks.

如何使用「在线闹钟」？How do I use the Online Alarm Clock tool?

在「在线闹钟」中，按需设置「闹钟时间」、「备注（可选）」、「铃声」、「贪睡」等选项，然后点击「添加闹钟」、「试听铃声」、「贪睡」、「停止」按钮即可。In the Online Alarm Clock: Set "Alarm time", "Label (optional)", "Sound", "Snooze", then click "Add alarm", "Test sound", "Snooze", "Stop".

关闭页面后闹钟还会响吗？Will the alarm ring if I close the page?

不会。这是网页闹钟，必须保持此标签页打开、电脑或手机不休眠。闹钟设置会保存在本机浏览器里，重新打开页面后会恢复（过期的闹钟会顺延到下一天的同一时间）。需要可靠叫醒请同时使用手机系统闹钟。No. This is a web alarm, so the tab must stay open and the device awake. Alarms are saved in this browser and restored when you reopen the page (an alarm whose time passed moves to the same time next day). For reliable wake-ups, also use your phone's built-in alarm.

为什么没有声音？Why is there no sound?

浏览器规定网页只有在你点击过页面后才能播放声音。点“添加闹钟”或“试听铃声”即可解锁；另外请检查系统音量和标签页是否被静音。Browsers only allow sound after you have interacted with the page. Clicking Add alarm or Test sound unlocks audio; also check your system volume and that the tab is not muted.

后台标签页会延迟吗？Is a background tab delayed?

浏览器会降低后台标签页的计时频率，闹钟仍会在到点后的一两秒内触发，但如果电脑进入睡眠，会在唤醒后才响。Browsers slow timers in background tabs, but the alarm still fires within a second or two of the time. If the computer sleeps, it rings when it wakes up.

贪睡怎么用？How does snooze work?

响铃时点“贪睡”，会停止当前铃声，并按你选择的分钟数（默认 5 分钟）添加一个一次性闹钟；响过后会自动关闭。铃声最长持续 10 分钟后自动停止。Click Snooze while it rings: the sound stops and a one-time alarm is added after the minutes you chose (5 by default), which switches itself off after ringing. Ringing stops automatically after 10 minutes.

两个闹钟同时到点会怎样？What if two alarms are due at the same time?

都会响：先响第一个，响铃框里会提示还有几个闹钟同时到点；点“停止”或“贪睡”后接着响下一个。不能添加时间和备注都相同的重复闹钟。如果关闭页面期间错过了贪睡闹钟，重新打开时它会被删除，不会变成每天响的闹钟；普通闹钟则顺延到下一天的同一时间。They all ring: the first one rings and the ringing box says how many others are due; after you click Stop or Snooze the next one rings. You cannot add a second alarm with the same time and label. A snooze alarm that was missed while the page was closed is removed when you reopen the page rather than turning into a daily alarm; regular alarms move to the same time the next day.

时区如何处理？How are time zones handled?

「在线闹钟」默认使用你设备的本地时区（按浏览器设置），夏令时由浏览器自动处理。The Online Alarm Clock uses your device's local time zone by default, and daylight saving time is handled by the browser.

「在线闹钟」免费吗？需要注册吗？Is the Online Alarm Clock free? Do I need an account?

「在线闹钟」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Online Alarm Clock is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.