Some tasks need exactly 15 minutes and 58 seconds. Instead of checking the clock again and again, let the 958 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 958 Second Timer
People use a 958 second timer for very different tasks, for example:
- Focused Sprint: Clear your inbox, answer messages or outline an idea in one focused 958-second sprint without checking the clock.
- Classroom Activities: Teachers use a 958 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 958 second timer makes sure nothing burns.
- Cooking Rice: White rice usually simmers for 15 to 20 minutes, then rests briefly. A 958 second timer keeps the pot under control.
- Speeches & Pitches: Rehearse lightning talks, elevator pitches or class presentations with a visible 958-second limit.
Fun Fact: What Happens in 958 Seconds?
Alan Shepard’s Freedom 7, the first American human spaceflight in May 1961, lasted 15 minutes and 28 seconds. The 958 second timer lasts 30 seconds longer.
Broken down into prime factors, 958 = 2 × 479.
How to Set a 958 Second Timer
- The timer at the top of this page is already set to 15:58. Simply press Start Timer.
- Type a short note into the text field so you remember what the 958 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.
- Switch to fullscreen for big digits and save your configuration with Export Settings to load it again later.
Recommended Timers for Specific Activities
These use case timers come with complete, pre-configured sequences:
- Pull consistent espresso shots with the Barista Workflow Timer.
- For structured workout sessions, try the HIIT Workout Timer with work and rest intervals.
- Brew better coffee with the Coffee Brewing Timer.
- Give every product enough time to work with the Skin Care Routine Timer.
Other Timers You Might Like
Frequently Asked Questions About the 958 Second Timer
How long is a 958 second timer?
A 958 second timer runs for exactly 15 minutes and 58 seconds. That equals 16 minutes.
Can I pause or repeat the 958 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 958 seconds up to 100 times in a row.
Will I hear an alarm when the time is up?
Activate Enable Alarm, pick one of the 13 sounds and the 958 second timer will ring when it reaches zero. Make sure the tab stays open and your 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.
Start Your 958 Second Timer Now
Ready? Press Start Timer and let the 958 second timer do the counting. When the 958 seconds are over, the alarm and your final message will let you know on desktop, tablet or phone.
Plan Your 958 Seconds
Numbers that help you use the 958 second timer in practice, all calculated for exactly 15 minutes and 58 seconds.
When Does a 958-Second Countdown End?
Starting soon? Here is when the countdown ends for typical start times:
| Start | Timer ends |
|---|---|
| 07:00 (7:00 am) | 07:15:58 (7:15:58 am) |
| 09:00 (9:00 am) | 09:15:58 (9:15:58 am) |
| 12:00 (12:00 pm) | 12:15:58 (12:15:58 pm) |
| 14:30 (2:30 pm) | 14:45:58 (2:45:58 pm) |
| 18:00 (6:00 pm) | 18:15:58 (6:15:58 pm) |
| 21:00 (9:00 pm) | 21:15:58 (9:15:58 pm) |
Countdown Milestones
- A quarter done: after 4 minutes, with 11 minutes and 59 seconds remaining.
- Halfway point: after 7 minutes and 59 seconds, with 7 minutes and 59 seconds remaining.
- Three quarters done: after 11 minutes and 59 seconds, with 4 minutes remaining.
- Last 10 percent: after 14 minutes and 22 seconds, with 1 minute and 36 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 958 Seconds
- Tabata-style 20/10: 31 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 958 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) | 56 kcal | 75 kcal |
| Brisk walking (5.6 km/h · 3.5 mph) | 69 kcal | 92 kcal |
| Jogging, general | 112 kcal | 149 kcal |
| Running (9.7 km/h · 6 mph) | 156 kcal | 209 kcal |
| Cycling, moderate (19-22 km/h) | 128 kcal | 170 kcal |
| Swimming laps, moderate | 93 kcal | 123 kcal |
| Jumping rope, moderate | 188 kcal | 251 kcal |
| Hatha yoga | 40 kcal | 53 kcal |
How Far You Get in 958 Seconds
Distance covered at typical average speeds without stops:
| Way of moving | Speed | Distance |
|---|---|---|
| Walking | 5 km/h | 1.33 km (0.83 mi) |
| Running | 10 km/h | 2.66 km (1.65 mi) |
| Cycling | 20 km/h | 5.32 km (3.31 mi) |
| Car on the motorway | 100 km/h | 26.6 km (16.5 mi) |
| High-speed train | 300 km/h | 79.8 km (49.6 mi) |
958 Seconds Compared With Real-World Durations
- 15:00: Half-time in a football (soccer) match lasts 15 minutes. (58 seconds shorter than this timer)
- 15:00: Each quarter of an NFL game lasts 15 minutes of game time. (58 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. (30 seconds shorter than this timer)
- 17:30: White rice usually simmers for about 15 to 20 minutes before it is ready. (1 minute and 32 seconds longer than this timer)
- 18:00: TED talks are limited to a maximum of 18 minutes. (2 minutes and 2 seconds longer than this timer)