Alarm clock
Set as many alarms as you need. We will ring loudly when each one fires, with snooze and a full-screen prompt that is hard to miss.
Your local time
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Phone alarms are great until your phone is charging in the other room or muted for the cinema or in a city where the SIM is different. A browser alarm is the reliable backup: it lives in the tab you already have open, it does not require you to install anything, and it does not care which country you are in. We use it for ovens, video calls, kids' screen time, and the standard "stand up every hour" reminder. As long as the tab is open and the laptop is awake, the alarm will ring at the time you asked for.
Alarms persist in your browser's local storage, so reloading the page or restarting the browser keeps them around. When an alarm fires we play a looping beep generated by the Web Audio API, show a full-screen modal that traps focus, and optionally send a system notification if you grant permission. Snooze re-arms the alarm five minutes out. The local clock at the top is just the system clock formatted nicely. If you need clocks in other timezones, the world clock shows live time for any city, and the time zone converter handles the math.
The tab needs to be open. If you close the browser or the laptop sleeps, no alarm. For workday cues this is rarely a problem. For waking up at 5am after a flight, keep your phone alarm as primary. The notification permission is optional: if you block it, the in-tab modal still fires. Audio is generated, not streamed, so it works offline once the page is loaded. For focus blocks rather than fixed times, swap to the Pomodoro timer.