The 917 Second Timer on FinalTimer.com is a free countdown for 15 minutes and 17 seconds. It runs in any browser, works in fullscreen and alerts you with one of 13 alarm sounds when the 917 seconds are over.
Why Use a 917 Second Timer?
Here is where 15 minutes and 17 seconds fit perfectly:
- Tidy-Up Challenge: Pick one room and see how much you can clean before the 917 seconds are over. It is a game the whole family can play.
- Power Nap: A nap of 10 to 25 minutes refreshes you without the grogginess of deep sleep. Set the 917 second timer and relax.
- Short Rest: Close your eyes for 15 minutes and 17 seconds and let the alarm bring you back before you fall into deep sleep.
- Cooking Rice: White rice usually simmers for 15 to 20 minutes, then rests briefly. A 917 second timer keeps the pot under control.
- Focused Sprint: Clear your inbox, answer messages or outline an idea in one focused 917-second sprint without checking the clock.
Fun Fact About 917 Seconds
Each quarter of an NFL game lasts 15 minutes of game time. This 917 second timer gives you 17 seconds more than that.
Broken down into prime factors, 917 = 7 × 131.
Start Your 917 Second Timer in Seconds
- The timer at the top of this page is already set to 15:17. Simply press Start Timer.
- Give your countdown a name in the text field, switch on the alarm and pick the sound you like best.
- 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
Related timers with ready-made programs:
- Practise your talk with the Presentation Timer, including warnings before time runs out.
- Brew better coffee with the Coffee Brewing Timer.
- For structured workout sessions, try the HIIT Workout Timer with work and rest intervals.
- For mindfulness and calm breathing, the Meditation Timer guides you through every phase.
Explore More Timers
Frequently Asked Questions About the 917 Second Timer
How long is a 917 second timer?
A 917 second timer runs for exactly 15 minutes and 17 seconds. That equals 15.3 minutes.
Can I pause or repeat the 917 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 917 seconds up to 100 times in a row.
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 917 Seconds
A clear time frame turns intentions into action. Set your 917 second timer, commit to the task in front of you and let FinalTimer keep track of the 15 minutes and 17 seconds. No app, no account, completely free.
Plan Your 917 Seconds
Numbers that help you use the 917 second timer in practice, all calculated for exactly 15 minutes and 17 seconds.
When Does a 917-Second Countdown End?
Starting soon? Here is when the countdown ends for typical start times:
| Start | Timer ends |
|---|---|
| 07:00 (7:00 am) | 07:15:17 (7:15:17 am) |
| 09:00 (9:00 am) | 09:15:17 (9:15:17 am) |
| 12:00 (12:00 pm) | 12:15:17 (12:15:17 pm) |
| 14:30 (2:30 pm) | 14:45:17 (2:45:17 pm) |
| 18:00 (6:00 pm) | 18:15:17 (6:15:17 pm) |
| 21:00 (9:00 pm) | 21:15:17 (9:15:17 pm) |
Countdown Milestones
- A quarter done: after 3 minutes and 49 seconds, with 11 minutes and 28 seconds remaining.
- Halfway point: after 7 minutes and 39 seconds, with 7 minutes and 39 seconds remaining.
- Three quarters done: after 11 minutes and 28 seconds, with 3 minutes and 49 seconds remaining.
- Last 10 percent: after 13 minutes and 45 seconds, with 1 minute and 32 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 917 Seconds
- Tabata-style 20/10: 30 rounds of 20 seconds work and 10 seconds rest, which makes 3 complete 4-minute Tabata blocks.
- 30/30 intervals: 15 rounds of 30 seconds on and 30 seconds off.
- EMOM (every minute on the minute): 15 minutes, each starting with a fixed set of reps.
Calories Burned in 917 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) | 53 kcal | 71 kcal |
| Brisk walking (5.6 km/h · 3.5 mph) | 66 kcal | 88 kcal |
| Jogging, general | 107 kcal | 143 kcal |
| Running (9.7 km/h · 6 mph) | 150 kcal | 200 kcal |
| Cycling, moderate (19-22 km/h) | 122 kcal | 163 kcal |
| Swimming laps, moderate | 89 kcal | 118 kcal |
| Jumping rope, moderate | 180 kcal | 240 kcal |
| Hatha yoga | 38 kcal | 51 kcal |
How Far You Get in 917 Seconds
Distance covered at typical average speeds without stops:
| Way of moving | Speed | Distance |
|---|---|---|
| Walking | 5 km/h | 1.27 km (0.79 mi) |
| Running | 10 km/h | 2.55 km (1.58 mi) |
| Cycling | 20 km/h | 5.09 km (3.17 mi) |
| Car on the motorway | 100 km/h | 25.5 km (15.8 mi) |
| High-speed train | 300 km/h | 76.4 km (47.5 mi) |
917 Seconds Compared With Real-World Durations
- 14:00: A rugby sevens match has only 14 minutes of playing time: two halves of seven minutes. (1 minute and 17 seconds shorter than this timer)
- 15:00: Half-time in a football (soccer) match lasts 15 minutes. (17 seconds shorter than this timer)
- 15:00: Each quarter of an NFL game lasts 15 minutes of game time. (17 seconds shorter than this timer)
- 15:28: Alan Shepard’s Freedom 7, the first American human spaceflight in May 1961, lasted 15 minutes and 28 seconds. (11 seconds longer than this timer)
- 17:30: White rice usually simmers for about 15 to 20 minutes before it is ready. (2 minutes and 13 seconds longer than this timer)