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Whether it is time before the plane, train arrival, business meeting, or you just want to sleep for a few hours. In all these situations, it is convenient to use the 12 Hour timer online.

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

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!

Thank you. 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 …

Set the timer for 12 Hours with our easy online countdown. Free & perfect for study, work, cooking, or exercise. Start your 12 Hours countdown now!

Online timer with pre-set countdown time for 12 hours . Free, fun and easy to use 12 hour clock countdown.

Set a timer for 12 hours and get notified when time’s up. Wake me up in 12 hours or set the alarm to go off from now. This free, easy-to-use online timer works instantly.

Use this free 12 hours timer with sound and pause/reset controls. Great for focus, workouts, or quick tasks.

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.