Use this timer to easily time 12 Hours. Fullscreen and free!

Free online 12 hour timer. Start your 12 hours countdown now. Perfect for timing your activities. Easy to use, no installation needed and supports full screen mode.

The 12 Hour Timer is a convenient online tool that allows you to set a countdown for any activity or event. Perfect for cooking, studying, workouts, and more!

Start the 12 Hour 🕒 Timer in just 1 click! The timer is already set for 12 Hours, so you can quickly start it and go about your business. If you need, you can additionally configure the timer using convenient settings.

This page is a 12 hour timer that counts down once you click 'Start'. This online countdown timer will alarm you with sound in 12 hour. You can pause and resume this timer anytime by clicking the 'Pause' or 'Resume' buttons.

Set a countdown timer for 12 hours and we'll alert you when it expires. You choose how many hours, minutes or seconds the timer should last.

Free online 12 hour timer - start instantly. Easy countdown for long tasks. No setup needed. Click to begin your precise 12 hour timer now. Best 12 hour timer online!

Click the start button to start the timer. Use the box below to create a new timer. 12 Hour Timer. Timer, Countdown timer. Create a 12 Hour Timer.