Does an online alarm clock work if I close the browser?

Most browsers require the page (or installed web app) to remain active. For best reliability, keep the tab open or install Clock7 to your home screen.

Can I set more than one alarm?

Yes. Add multiple alarms and manage them in the Active Alarms list. You can enable/disable or delete alarms anytime.

How do quick minute presets work?

Tap a preset (5, 10, 15, 30, 45 minutes, or 1 hour) and the alarm will ring after that duration from now. For more options, open Quick Alarm presets.

Will it use my local time automatically?

Yes. The large clock uses your device and browser time, so it always shows your current local time.

⏰Online Alarm Clock

See your live local time, set an alarm for an exact time, or tap a quick preset like 5 minutes, 15 minutes, or 1 hour. Simple, fast, and mobile-friendly.

Set an alarm time

Pick a time and set an alarm quickly. If the time already passed today, we schedule it for tomorrow.

--:-- • ---

Alarm time

Alarm sound

Message

Repeat alarm until stopped

No alarm set

Tip: keep this tab open for best reliability. Some devices pause browser timers when sleeping.

Quick minute presets

Tap a preset to ring after a duration from now.

Need more presets? Open Quick Alarm (1–60 minutes)

Active alarms

Your countdown updates live so you always know how long is left.

Free Online Alarm Clock with Live Local Time

Clock7’s online alarm clock shows your current local time instantly and helps you set alarms in two ways: quick minute presets (like a 15 minute alarm) or a specific clock time (like 7:30 AM). It’s designed to be fast, clean, and easy to use on desktop and mobile.

Quick presets vs. time-based alarms

Use the quick presets when you need an alarm “in 10 minutes” or “in 1 hour.” Use the time picker when you need an alarm at an exact time. If the selected time already passed today, the alarm automatically schedules for tomorrow.

Multiple alarms and custom sounds

You can set multiple alarms and manage them in the Active Alarms list. Choose an alert sound, add a short message, and optionally keep the alarm repeating until you stop it — helpful for wake-up alarms or important reminders.

FAQ

Will this alarm clock use my local time?

Yes. The clock uses your device and browser time and updates every second, so it always reflects your current local time.

Do I need to install anything?

No downloads needed. It runs in your browser. For best reliability on mobile, you can add the page to your home screen as a web app.

Why might alarms fail on some devices?

Some operating systems pause browser tabs when the device sleeps or the battery saver is active. Keep the tab open and disable aggressive power saving if you rely on alarms.