Time flies when you are busy, and a 378 second timer makes it visible. This free online countdown measures 6 minutes and 18 seconds precisely and lets you add your own text, an alarm and a final message.
Why Use a 378 Second Timer?
Here are some popular ways to use a 378-second countdown:
- Tidy-Up Challenge: Pick one room and see how much you can clean before the 378 seconds are over. It is a game the whole family can play.
- Face or Hair Mask: Most masks and treatments need 5 to 20 minutes to work, and the 378 second timer tells you when to rinse.
- Short Rest: Close your eyes for 6 minutes and 18 seconds 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 378-second round keeps the energy high.
- Flashcard Session: Review vocabulary or exam cards for 6 minutes and 18 seconds. Short, regular sessions beat long cramming.
Fun Fact About 378 Seconds
The total solar eclipse of 2 August 2027 will offer up to 6 minutes and 23 seconds of totality, one of the longest total eclipses visible from land in the 21st century. The 378 second timer is just 5 seconds shorter than that.
378 is a triangular number: 1 + 2 + 3 + … + 27 = 378.
How to Set a 378 Second Timer
- Check the preset time (06:18) and click Start Timer; the countdown begins immediately.
- Type a short note into the text field so you remember what the 378 seconds are for, and keep the alarm switched on.
- Need intervals? Use Repeat Timer or add more timers. They will run one after another automatically.
- Use fullscreen mode for a large, distraction-free display and Export Settings to save your setup as a JSON file.
Recommended Timers for Specific Activities
These use case timers come with complete, pre-configured sequences:
- Refine your pacing with the Speech Rehearsal Timer.
- Practise your talk with the Presentation Timer, including warnings before time runs out.
- For structured workout sessions, try the HIIT Workout Timer with work and rest intervals.
- Clean your home in short bursts with the Speed Cleaning Timer.
More Timer Options
Frequently Asked Questions About the 378 Second Timer
How long is a 378 second timer?
A 378 second timer runs for exactly 6 minutes and 18 seconds. That equals 6.3 minutes.
Can I pause or repeat the 378 second timer?
Absolutely. Use the pause button to stop the countdown and continue later. With the repeat option the 378 second timer restarts automatically as often as you like.
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 Every Second of the 378 Second Timer Count
A clear time frame turns intentions into action. Set your 378 second timer, commit to the task in front of you and let FinalTimer keep track of the 6 minutes and 18 seconds. No app, no account, completely free.
Plan Your 378 Seconds
Numbers that help you use the 378 second timer in practice, all calculated for exactly 6 minutes and 18 seconds.
When Does a 378-Second Countdown End?
Starting soon? Here is when the countdown ends for typical start times:
| Start | Timer ends |
|---|---|
| 07:00 (7:00 am) | 07:06:18 (7:06:18 am) |
| 09:00 (9:00 am) | 09:06:18 (9:06:18 am) |
| 12:00 (12:00 pm) | 12:06:18 (12:06:18 pm) |
| 14:30 (2:30 pm) | 14:36:18 (2:36:18 pm) |
| 18:00 (6:00 pm) | 18:06:18 (6:06:18 pm) |
| 21:00 (9:00 pm) | 21:06:18 (9:06:18 pm) |
Countdown Milestones
- A quarter done: after 1 minute and 35 seconds, with 4 minutes and 44 seconds remaining.
- Halfway point: after 3 minutes and 9 seconds, with 3 minutes and 9 seconds remaining.
- Three quarters done: after 4 minutes and 44 seconds, with 1 minute and 35 seconds remaining.
- Last 10 percent: after 5 minutes and 40 seconds, with 38 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 378 Seconds
- Tabata-style 20/10: 12 rounds of 20 seconds work and 10 seconds rest, which makes 1 complete 4-minute Tabata block.
- 30/30 intervals: 6 rounds of 30 seconds on and 30 seconds off.
- EMOM (every minute on the minute): 6 minutes, each starting with a fixed set of reps.
Calories Burned in 378 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) | 22 kcal | 29 kcal |
| Brisk walking (5.6 km/h · 3.5 mph) | 27 kcal | 36 kcal |
| Jogging, general | 44 kcal | 59 kcal |
| Running (9.7 km/h · 6 mph) | 62 kcal | 82 kcal |
| Cycling, moderate (19-22 km/h) | 50 kcal | 67 kcal |
| Swimming laps, moderate | 37 kcal | 49 kcal |
| Jumping rope, moderate | 74 kcal | 99 kcal |
| Hatha yoga | 16 kcal | 21 kcal |
How Far You Get in 378 Seconds
Distance covered at typical average speeds without stops:
| Way of moving | Speed | Distance |
|---|---|---|
| Walking | 5 km/h | 525 m (574 yd) |
| Running | 10 km/h | 1.05 km (0.65 mi) |
| Cycling | 20 km/h | 2.1 km (1.3 mi) |
| Car on the motorway | 100 km/h | 10.5 km (6.52 mi) |
378 Seconds Compared With Real-World Durations
- 06:00: Sunlight takes about 6 minutes to reach Venus. (18 seconds shorter than this timer)
- 06:00: A soft-boiled egg with a runny yolk needs about 6 minutes in boiling water. (18 seconds shorter than this timer)
- 06:23: The total solar eclipse of 2 August 2027 will offer up to 6 minutes and 23 seconds of totality, one of the longest total eclipses visible from land in the 21st century. (5 seconds longer than this timer)
- 06:30: The Eagles’ “Hotel California” runs about 6 minutes and 30 seconds. (12 seconds longer than this timer)
- 06:40: A PechaKucha presentation shows 20 slides for 20 seconds each, exactly 6 minutes and 40 seconds. (22 seconds longer than this timer)