Whether it is a short break, a work block or a long countdown, a fixed time frame helps you stay focused. This 768 second timer is preset to 12:48 and starts with a single click.
When a 768 Second Timer Comes in Handy
Here is where 12 minutes and 48 seconds fit perfectly:
- Journaling: Write freely for 12 minutes and 48 seconds: a short journaling session clears your head and sharpens your priorities.
- Baking Cookies: Many cookie and muffin recipes bake for 10 to 25 minutes, and the 768 second timer makes sure nothing burns.
- Speeches & Pitches: Rehearse lightning talks, elevator pitches or class presentations with a visible 768-second limit.
- Classroom Activities: Teachers use a 768 second timer for reading time, group tasks or quiz rounds so everyone can see how much time is left.
- Focused Sprint: Clear your inbox, answer messages or outline an idea in one focused 768-second sprint without checking the clock.
Fun Fact About 768 Seconds
Joshua Cheptegei set the 5000 m world record of 12:35.36 in Monaco in 2020. The 768 second timer lasts 12.64 seconds longer.
Broken down into prime factors, 768 = 2⁸ × 3.
Start Your 768 Second Timer in Seconds
- Check the preset time (12:48) and click Start Timer; the countdown begins immediately.
- Optionally add a label, enable the alarm and choose one of 13 alarm sounds (use the speaker button to preview them).
- Turn on Repeat Timer to run the 768 seconds several times in a row, or click Add Timer to build a sequence.
- Share your setup with a link or export it as JSON, perfect for teams, classes and training partners.
Recommended Timers for Specific Activities
Related timers with ready-made programs:
- For mindfulness and calm breathing, the Meditation Timer guides you through every phase.
- For structured workout sessions, try the HIIT Workout Timer with work and rest intervals.
- Short on time? The Tabata Timer delivers a complete 4-minute interval workout.
- Brew better coffee with the Coffee Brewing Timer.
Explore More Timers
Frequently Asked Questions About the 768 Second Timer
How long is a 768 second timer?
A 768 second timer runs for exactly 12 minutes and 48 seconds. That equals 12.8 minutes.
Can I pause or repeat the 768 second timer?
Yes. While the countdown is running you can pause and resume it at any time. Enable Repeat Timer before starting to run the 768 seconds up to 100 times in a row.
Will I hear an alarm when the time is up?
Yes, if Enable Alarm is checked. You can choose between 13 alarm sounds and preview them before starting. Keep the browser tab open and the sound of your device switched on.
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 Every Second of the 768 Second Timer Count
Even a single countdown can change the way you manage time. Use the 768 second timer as often as you like, save your favourite setup as a JSON file and share it with friends, students or your team.
Plan Your 768 Seconds
Numbers that help you use the 768 second timer in practice, all calculated for exactly 12 minutes and 48 seconds.
When Does a 768-Second Countdown End?
Starting soon? Here is when the countdown ends for typical start times:
| Start | Timer ends |
|---|---|
| 07:00 (7:00 am) | 07:12:48 (7:12:48 am) |
| 09:00 (9:00 am) | 09:12:48 (9:12:48 am) |
| 12:00 (12:00 pm) | 12:12:48 (12:12:48 pm) |
| 14:30 (2:30 pm) | 14:42:48 (2:42:48 pm) |
| 18:00 (6:00 pm) | 18:12:48 (6:12:48 pm) |
| 21:00 (9:00 pm) | 21:12:48 (9:12:48 pm) |
Countdown Milestones
- A quarter done: after 3 minutes and 12 seconds, with 9 minutes and 36 seconds remaining.
- Halfway point: after 6 minutes and 24 seconds, with 6 minutes and 24 seconds remaining.
- Three quarters done: after 9 minutes and 36 seconds, with 3 minutes and 12 seconds remaining.
- Last 10 percent: after 11 minutes and 31 seconds, with 1 minute and 17 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 768 Seconds
- Tabata-style 20/10: 25 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 768 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) | 45 kcal | 60 kcal |
| Brisk walking (5.6 km/h · 3.5 mph) | 55 kcal | 73 kcal |
| Jogging, general | 90 kcal | 119 kcal |
| Running (9.7 km/h · 6 mph) | 125 kcal | 167 kcal |
| Cycling, moderate (19-22 km/h) | 102 kcal | 137 kcal |
| Swimming laps, moderate | 74 kcal | 99 kcal |
| Jumping rope, moderate | 151 kcal | 201 kcal |
| Hatha yoga | 32 kcal | 43 kcal |
How Far You Get in 768 Seconds
Distance covered at typical average speeds without stops:
| Way of moving | Speed | Distance |
|---|---|---|
| Walking | 5 km/h | 1.07 km (0.66 mi) |
| Running | 10 km/h | 2.13 km (1.33 mi) |
| Cycling | 20 km/h | 4.27 km (2.65 mi) |
| Car on the motorway | 100 km/h | 21.3 km (13.3 mi) |
| High-speed train | 300 km/h | 64 km (39.8 mi) |
768 Seconds Compared With Real-World Durations
- 11:00: A hard-boiled egg needs about 10 to 12 minutes in boiling water. (1 minute and 48 seconds shorter than this timer)
- 12:00: An NBA quarter lasts 12 minutes of game time. (48 seconds shorter than this timer)
- 12:35: Joshua Cheptegei set the 5000 m world record of 12:35.36 in Monaco in 2020. (12.64 seconds shorter than this timer)
- 12:40: Sunlight needs about 12 and a half minutes to reach Mars. (8 seconds shorter than this timer)
- 14:00: A rugby sevens match has only 14 minutes of playing time: two halves of seven minutes. (1 minute and 12 seconds longer than this timer)