12 Hour Timer
A free 12 hour timer — pre-loaded and ready to start, with a clear alert when it hits zero.
12:00:00
Frequently asked questions
Does the 12 hour timer start automatically?
No — press Start when you're ready; the duration is just pre-loaded.
Can I change the duration?
Yes, use the +/- buttons to adjust before starting, or visit the timer page to set any custom duration.