10 Hour Alarm Clock - Set Alarm 10 Hours from Now

Customize Your 10 Hour Alarm Clock

Ring Settings:

Outer Ring Color:

Inner Ring Color:

Progress Ring Color:

Progress Shadow Color:

Time Display Settings:

Time Display Color:

Time Display Size (px):

Time Display Shadow Color:

Background Customization

Choose Your Background

This 10 hour alarm automatically calculates the time 10 hours from now and starts counting down immediately. Perfect for extended work sessions, overnight monitoring, or any activity requiring a 10-hour time span.

⏰ Auto-Set Alarm

Automatically sets alarm for exactly 10 hours from current time

📊 Visual Progress

Watch the countdown with animated progress rings

🎨 Customizable

Personalize colors, background, and display size

How to Use the 10 Hour Alarm

1.
Automatic Start: The alarm automatically begins counting down 10 hours from the moment you load the page. The display shows your target alarm time (current time + 10 hours).
2.
Adjust if Needed: Use the hour/minute selectors or timer input field to customize your alarm time. The default is always 10 hours ahead.
3.
Monitor Progress: Watch the countdown timer and circular progress indicator. The display shows exactly when your alarm will ring (e.g., "Alarm 8:30:00 PM").
4.
Reset Anytime: Click the reset button to restart the 10-hour countdown from the current moment.

Why Use a 10 Hour Alarm?

💼 Extended Work Sessions

Perfect for marathon work days, project deadlines, or long shifts. Set it once and focus on your tasks without clock-watching.

😴 Overnight Monitoring

Ideal for tracking long sleep cycles, overnight charging, or any process requiring 10 hours of timing.

🎯 Activity Planning

Schedule reminders for events 10 hours away, like medication times, cooking preparation, or travel departure reminders.

📱 Always Accessible

Works in any browser on desktop or mobile. No downloads, no app installation required. Bookmark for instant access.

Frequently Asked Questions

Does the alarm work if I close the browser?

No, the alarm requires the browser tab to remain open. However, you can minimize the browser or switch tabs while keeping this page loaded.

How accurate is the 10 hour countdown?

The timer is accurate to the second. It calculates exactly 10 hours (36,000 seconds) from the moment you start or reset the alarm.

Can I change the duration from 10 hours?

Yes! You can manually adjust the timer using the hour/minute selectors or the duration input field (format: HH:MM:SS). The default is always 10:00:00.

Will the alarm sound wake me up?

The alarm produces a continuous tone that alternates between two frequencies. Make sure your device volume is turned up before leaving it unattended.

What happens when the 10 hours are up?

The alarm will trigger an audible sound and flash the timer display. The "Alarms Triggered" counter increments, and you can click reset to start a new 10-hour countdown.

Ready to Set Your 10 Hour Alarm?

The countdown has already started! Scroll up to view your alarm time and customize your experience.