timerhive.com12 Hour Timer
Free 12 hour countdown timer with alarm for long shifts, events, and endurance tasks.
12:00:00
.00
After this timer ends, check what time it will be, or browse the study timer and online timer hubs.
How to Use 12 Hour Timer
The 12 Hour Timer covers half-day shifts, events, and long processes. Keep the tab open for the alarm, or use fullscreen on a spare display.
Frequently Asked Questions
How do I set a 12 hour timer?
Open this page and press Start. The countdown begins at 12:00:00. Use Edit to change hours, minutes, seconds, or pick a different alarm sound.
Can I use this as a free online 12 hour timer with alarm?
Yes. This free browser timer counts down from 12:00:00 and plays your chosen alarm when time is up. No download or signup required.
What can I use a 12 hour timer for?
The 12 Hour Timer covers half-day shifts, events, and long processes. Keep the tab open for the alarm, or use fullscreen on a spare display.