Some tasks need exactly 12 minutes. Instead of checking the clock again and again, let the 720 Second Timer keep track for you. It runs right here in your browser and alerts you the moment time is up.
Practical Uses for a 720 Second Timer
A countdown of 12 minutes works well for situations like these:
- Steaming Vegetables: Broccoli, carrots or green beans are tender-crisp after a few minutes of steaming, and the 720-second countdown keeps them from turning mushy.
- Classroom Activities: Teachers use a 720 second timer for reading time, group tasks or quiz rounds so everyone can see how much time is left.
- Baking Cookies: Many cookie and muffin recipes bake for 10 to 25 minutes, and the 720 second timer makes sure nothing burns.
- Short Rest: Close your eyes for 12 minutes and let the alarm bring you back before you fall into deep sleep.
- Brainstorming Round: Collect ideas in a team without discussing them. A fixed 720-second round keeps the energy high.
Fun Fact: What Happens in 720 Seconds?
An NBA quarter lasts 12 minutes of game time. Your 720 second timer runs for the same amount of time.
720 is 6 factorial (1 × 2 × 3 × 4 × 5 × 6) and also the number of hours in 30 days.
Start Your 720 Second Timer in Seconds
- The timer at the top of this page is already set to 12:00. Simply press Start Timer.
- Optionally add a label, enable the alarm and choose one of 13 alarm sounds (use the speaker button to preview them).
- Combine the 720-second block with breaks or other phases by adding timers; the whole sequence runs on its own.
- Switch to fullscreen for big digits and save your configuration with Export Settings to load it again later.
Recommended Timers for Specific Activities
Related timers with ready-made programs:
- Brew better coffee with the Coffee Brewing Timer.
- For mindfulness and calm breathing, the Meditation Timer guides you through every phase.
- Refine your pacing with the Speech Rehearsal Timer.
- Give every product enough time to work with the Skin Care Routine Timer.
More Timer Options
Frequently Asked Questions About the 720 Second Timer
How long is a 720 second timer?
A 720 second timer runs for exactly 12 minutes. That equals .
Can I pause or repeat the 720 second timer?
You can pause at any moment (also with the space bar) and resume exactly where you stopped. To run the 720 seconds several times, switch on Repeat Timer and choose how often.
Will I hear an alarm when the time is up?
Yes. Every timer can play its own alarm sound. 13 tones are available, and the speaker button lets you listen to them first. Browsers only play sound while the tab is open and the device is not muted.
Do I need to install anything?
No. FinalTimer works directly in your browser on desktop, tablet and smartphone. There is no app, no registration and no cost.
Make the Most of 720 Seconds
No downloads, no sign-up, no distractions, just a reliable 720 second timer. Start it now, and if you need a different duration, the list of all timers has every value from 1 to 1,000.
Plan Your 720 Seconds
Numbers that help you use the 720 second timer in practice, all calculated for exactly 12 minutes.
When Does a 720-Second Countdown End?
Starting soon? Here is when the countdown ends for typical start times:
| Start | Timer ends |
|---|---|
| 07:00 (7:00 am) | 07:12 (7:12 am) |
| 09:00 (9:00 am) | 09:12 (9:12 am) |
| 12:00 (12:00 pm) | 12:12 (12:12 pm) |
| 14:30 (2:30 pm) | 14:42 (2:42 pm) |
| 18:00 (6:00 pm) | 18:12 (6:12 pm) |
| 21:00 (9:00 pm) | 21:12 (9:12 pm) |
Countdown Milestones
- A quarter done: after 3 minutes, with 9 minutes remaining.
- Halfway point: after 6 minutes, with 6 minutes remaining.
- Three quarters done: after 9 minutes, with 3 minutes remaining.
- Last 10 percent: after 10 minutes and 48 seconds, with 1 minute and 12 seconds remaining.
Speakers, teachers and exam supervisors often give a warning at the 75 % or 90 % mark. Add a second timer for the warning if you want an extra alarm.
Intervals That Fit Into 720 Seconds
- Tabata-style 20/10: 24 rounds of 20 seconds work and 10 seconds rest, which makes 3 complete 4-minute Tabata blocks.
- 30/30 intervals: 12 rounds of 30 seconds on and 30 seconds off.
- EMOM (every minute on the minute): 12 minutes, each starting with a fixed set of reps.
Calories Burned in 720 Seconds
Estimated energy use for common activities, calculated with MET values from the Compendium of Physical Activities (kcal = MET × body weight in kg × hours). Real values vary with fitness, age and intensity.
| Activity | 60 kg (132 lb) | 80 kg (176 lb) |
|---|---|---|
| Walking (4.8 km/h · 3 mph) | 42 kcal | 56 kcal |
| Brisk walking (5.6 km/h · 3.5 mph) | 52 kcal | 69 kcal |
| Jogging, general | 84 kcal | 112 kcal |
| Running (9.7 km/h · 6 mph) | 118 kcal | 157 kcal |
| Cycling, moderate (19-22 km/h) | 96 kcal | 128 kcal |
| Swimming laps, moderate | 70 kcal | 93 kcal |
| Jumping rope, moderate | 142 kcal | 189 kcal |
| Hatha yoga | 30 kcal | 40 kcal |
How Far You Get in 720 Seconds
Distance covered at typical average speeds without stops:
| Way of moving | Speed | Distance |
|---|---|---|
| Walking | 5 km/h | 1 km (0.62 mi) |
| Running | 10 km/h | 2 km (1.24 mi) |
| Cycling | 20 km/h | 4 km (2.49 mi) |
| Car on the motorway | 100 km/h | 20 km (12.4 mi) |
| High-speed train | 300 km/h | 60 km (37.3 mi) |
720 Seconds Compared With Real-World Durations
- 11:00: A hard-boiled egg needs about 10 to 12 minutes in boiling water. (1 minute shorter than this timer)
- 12:00: An NBA quarter lasts 12 minutes of game time. (same length as this timer)
- 12:35: Joshua Cheptegei set the 5000 m world record of 12:35.36 in Monaco in 2020. (35.36 seconds longer than this timer)
- 12:40: Sunlight needs about 12 and a half minutes to reach Mars. (40 seconds longer than this timer)
- 14:00: A rugby sevens match has only 14 minutes of playing time: two halves of seven minutes. (2 minutes longer than this timer)