秒表与计时器
带计圈的简易在线秒表，以及带闹铃的倒计时器。
在您的浏览器中运行。您的文件不会离开设备。 了解如何验证
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使用方法
- 1选择设置
填写信息或选择您需要的选项。
- 2查看结果
更改任何内容时，预览会立即更新。
- 3下载或保存
将结果保存到您的设备。不会向服务器发送或保存任何内容。
About this tool
Use the stopwatch to time anything and record laps, or set a countdown timer in minutes and seconds that beeps when time is up. It works in your browser; keep the tab open while it runs. Handy for studying, cooking, workouts and meetings.
When to use it
Time activities with a stopwatch and laps, or set a countdown timer with an alarm for cooking, study and exercise.
Tips
Keep the tab open and the volume on for the alarm.
Privacy
Everything runs in your browser, so your data is not uploaded or stored.
获得最佳结果的提示
开始之前请花一点时间阅读选项，并先用一个小例子试用工具。一切都在您设备的浏览器中运行；您输入或添加的任何内容都不会被上传，关闭标签页会清除所有内容。如果看起来不对，请刷新页面重试，或使用本页的报告链接告诉我们出了什么问题。如果结果仍然看起来不对，请每次只更改一个值，看看哪个输入影响最大。如果您还会再用，请收藏此页。
要点
- 分类: 文档
- 在浏览器中运行，无需注册，无需上传。
- 您输入的信息保留在设备上。
- 提供多种语言。
- 内容最后审核日期:
常见问题
Does the timer ring if the tab is in the background?
Usually yes, but some phones pause background tabs. Keep the page open for the most reliable result.
Can I record laps?
Yes. Press Lap while the stopwatch runs.
Can I record laps?
Yes, press lap to record split times.
Does it keep time in the background?
Yes, the time is based on the clock.