⏲️ 在线计时器（倒计时提醒）Online Countdown Timer
设定分钟和秒的在线倒计时器，时间到响铃提醒，可用于学习、做饭、运动。Set a countdown timer in minutes/seconds with an alarm sound when time's up.
使用说明与常见问题How-to & FAQ
「在线计时器（倒计时提醒）」是什么？What is the Online Countdown Timer tool?
设定分钟和秒的在线倒计时器，时间到响铃提醒，可用于学习、做饭、运动。Set a countdown timer in minutes/seconds with an alarm sound when time's up.
如何使用「在线计时器（倒计时提醒）」？How do I use the Online Countdown Timer tool?
在「在线计时器（倒计时提醒）」中，按需设置「分钟」、「秒」等选项，然后点击「开始/暂停」、「重置」、「1 分钟」、「3 分钟」按钮即可。In the Online Countdown Timer: Set "Minutes", "Seconds", then click "Start/Pause", "Reset", "1 min", "3 min".
时区如何处理？How are time zones handled?
「在线计时器（倒计时提醒）」按日历日期计算，只有“今天”取自你设备的本地日期；计算不涉及钟点，所以时区和夏令时不影响结果。The Online Countdown Timer works with calendar dates; only "today" comes from your device's local date. No clock times are involved, so time zones and daylight saving time do not affect the result.
「在线计时器（倒计时提醒）」免费吗？需要注册吗？Is the Online Countdown Timer free? Do I need an account?
「在线计时器（倒计时提醒）」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 Countdown Timer is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.