闹钟
Use the free online 闹钟 tool. Fast, private and easy to use — runs entirely in your browser. Part of our 时间工具 collection.
日期倒计时
Count down the days, hours, minutes and seconds to any date and time you choose.
秒表
A precise online stopwatch with start, stop and reset — great for workouts, cooking and study.
倒计时器
Set minutes and seconds and let the timer count down with an alert when it finishes.
番茄钟
Focus
Boost productivity with focused work sessions and automatic short breaks.
闹钟
Set an alarm for any time of day; the page will alert you when it rings.
数字时钟
A large, easy-to-read digital clock showing the current local time.
模拟时钟
A classic analog clock with Roman numerals and smooth hour, minute and second hands.
世界时钟
UTC—
New York—
London—
Paris—
Dubai—
India—
Tokyo—
Sydney—
See the current time in major cities around the world at a glance.
Frequently Asked Questions
Is the 闹钟 free to use?
Yes. The 闹钟 is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.
Is the 闹钟 safe and private?
Absolutely. The 闹钟 runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.
Do I need to install anything to use the 闹钟?
No installation is needed. The 闹钟 works instantly online in any modern browser on desktop, tablet or mobile.
Does the 闹钟 work on mobile phones?
Yes. The 闹钟 is fully responsive and works smoothly on iPhone, Android and any other device.