12 Hour Timer
Twelve hours is half a day — the standard long shift, an overnight soak, and the natural split between day and night.
12:00:0012 Hour Timer
Keep this tab open — the countdown stays accurate in the background, and the alarm sounds when it reaches zero.
What a 12 hour timer is good for
Hour-scale countdowns suit slow cooking, long study or work blocks, charging and soaking times, parking limits, and anything else you set once and forget about. Leave this tab open in the background and the alarm will bring you back when it's finished.
- A 12-hour shift in healthcare or emergency services
- Overnight soaking of beans or grains
- Half-day fasting or feeding windows
- Long fermentation and curing steps
How long is 12 hours?
| Unit | 12 hours equals |
|---|---|
| In seconds | 43,200 seconds |
| In minutes | 720 minutes |
| In hours | 12 hours |
| On the clock | 12:00:00 |