实用工具可以使用
闹钟
设置本地浏览器闹钟，在页面保持打开期间显示视觉提醒并可发出声音。
交互式工具区
无需注册账号The date/time operation runs locally using your device clock. Optional analytics and advertising have separate consent and privacy disclosures. Avoid sensitive personal dates.
Repeat days
Your alarms
No alarms are set.
Not a system alarm. It cannot wake a closed or sleeping device. Background tab throttling, muted audio, or browser suspension can delay or silence it. Use a device alarm for important reminders. A repeated local time follows the browser's daylight-saving rules. Alarms stay in this browser only.