Online countdown · 05:18

318 Second Timer

Free 318 second timer that counts down 5 minutes and 18 seconds. Press start and the alarm rings when the time is up. Add labels, repeats or more timers anytime.

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Looking for a reliable 318 second timer? The countdown above is already set to 05:18, which is 5 minutes and 18 seconds. Press start, get an alarm when time is up and use the extra options for labels, repeats and custom messages.

Practical Uses for a 318 Second Timer

People use a 318 second timer for very different tasks, for example:

  • Warm-Up & Cool-Down: Five to fifteen minutes of light movement before and after training prepare your body and help it recover.
  • Focused Sprint: Clear your inbox, answer messages or outline an idea in one focused 318-second sprint without checking the clock.
  • Classroom Activities: Teachers use a 318 second timer for reading time, group tasks or quiz rounds so everyone can see how much time is left.
  • Flashcard Session: Review vocabulary or exam cards for 5 minutes and 18 seconds. Short, regular sessions beat long cramming.
  • Herbal Tea: Herbal and fruit teas release their full flavour after 5 to 8 minutes of steeping.

Fun Fact: What Happens in 318 Seconds?

Rounds in mixed martial arts, for example in the UFC, last five minutes. The 318 second timer lasts 18 seconds longer.

Broken down into prime factors, 318 = 2 × 3 × 53.

How to Use the 318 Second Timer

  1. Check the preset time (05:18) and click Start Timer; the countdown begins immediately.
  2. Type a short note into the text field so you remember what the 318 seconds are for, and keep the alarm switched on.
  3. Need intervals? Use Repeat Timer or add more timers. They will run one after another automatically.
  4. Share your setup with a link or export it as JSON, perfect for teams, classes and training partners.

Recommended Timers for Specific Activities

Looking for a ready-made routine instead? Try one of these presets:

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Frequently Asked Questions About the 318 Second Timer

How long is a 318 second timer?

A 318 second timer runs for exactly 5 minutes and 18 seconds. That equals 5.3 minutes.

Can I pause or repeat the 318 second timer?

You can pause at any moment (also with the space bar) and resume exactly where you stopped. To run the 318 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.

Unlock the Power of 318 Seconds

No downloads, no sign-up, no distractions, just a reliable 318 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 318 Seconds

Numbers that help you use the 318 second timer in practice, all calculated for exactly 5 minutes and 18 seconds.

When Does a 318-Second Countdown End?

Starting soon? Here is when the countdown ends for typical start times:

StartTimer ends
07:00 (7:00 am)07:05:18 (7:05:18 am)
09:00 (9:00 am)09:05:18 (9:05:18 am)
12:00 (12:00 pm)12:05:18 (12:05:18 pm)
14:30 (2:30 pm)14:35:18 (2:35:18 pm)
18:00 (6:00 pm)18:05:18 (6:05:18 pm)
21:00 (9:00 pm)21:05:18 (9:05:18 pm)

Countdown Milestones

  • A quarter done: after 1 minute and 20 seconds, with 3 minutes and 59 seconds remaining.
  • Halfway point: after 2 minutes and 39 seconds, with 2 minutes and 39 seconds remaining.
  • Three quarters done: after 3 minutes and 59 seconds, with 1 minute and 20 seconds remaining.
  • Last 10 percent: after 4 minutes and 46 seconds, with 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 318 Seconds

  • Tabata-style 20/10: 10 rounds of 20 seconds work and 10 seconds rest, which makes 1 complete 4-minute Tabata block.
  • 30/30 intervals: 5 rounds of 30 seconds on and 30 seconds off.
  • EMOM (every minute on the minute): 5 minutes, each starting with a fixed set of reps.

Calories Burned in 318 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.

Activity60 kg (132 lb)80 kg (176 lb)
Walking (4.8 km/h · 3 mph)19 kcal25 kcal
Brisk walking (5.6 km/h · 3.5 mph)23 kcal30 kcal
Jogging, general37 kcal49 kcal
Running (9.7 km/h · 6 mph)52 kcal69 kcal
Cycling, moderate (19-22 km/h)42 kcal57 kcal
Swimming laps, moderate31 kcal41 kcal
Jumping rope, moderate63 kcal83 kcal
Hatha yoga13 kcal18 kcal

How Far You Get in 318 Seconds

Distance covered at typical average speeds without stops:

Way of movingSpeedDistance
Walking5 km/h442 m (483 yd)
Running10 km/h883 m (966 yd)
Cycling20 km/h1.77 km (1.1 mi)
Car on the motorway100 km/h8.83 km (5.49 mi)

318 Seconds Compared With Real-World Durations

  • 04:54: Michael Jackson’s “Billie Jean” runs about 4 minutes and 54 seconds on the album Thriller. (24 seconds shorter than this timer)
  • 04:55: Toto’s “Africa” (1982) runs 4 minutes and 55 seconds. (23 seconds shorter than this timer)
  • 05:00: An Ignite talk lasts exactly five minutes: 20 slides that advance automatically every 15 seconds. (18 seconds shorter than this timer)
  • 05:00: Rounds in mixed martial arts, for example in the UFC, last five minutes. (18 seconds shorter than this timer)
  • 05:01: Nirvana’s “Smells Like Teen Spirit” runs about 5 minutes and 1 second. (17 seconds shorter than this timer)