Online countdown · 08:20

500 Second Timer

Free 500 second timer that counts down 8 minutes and 20 seconds. Press start and the alarm rings when the time is up. Add labels, repeats or more timers anytime.

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Planning something that takes 500 seconds? The 500 Second Timer turns that time into a clear visual countdown with a progress bar, optional alarm sound and fullscreen view for the whole room.

Why Use a 500 Second Timer?

A 500 second timer is useful in many situations:

  • Focused Sprint: Clear your inbox, answer messages or outline an idea in one focused 500-second sprint without checking the clock.
  • Classroom Activities: Teachers use a 500 second timer for reading time, group tasks or quiz rounds so everyone can see how much time is left.
  • Warm-Up & Cool-Down: Five to fifteen minutes of light movement before and after training prepare your body and help it recover.
  • Quick Workout Block: Squeeze in a bodyweight circuit, a core routine or a jump-rope session that lasts exactly 8 minutes and 20 seconds.
  • Brainstorming Round: Collect ideas in a team without discussing them. A fixed 500-second round keeps the energy high.

Did You Know? 500 Seconds in Perspective

The Space Shuttle reached orbit about eight and a half minutes after liftoff. The 500 second timer is just 10 seconds shorter than that.

The Indianapolis 500 is a car race over 500 miles, first held in 1911.

Start Your 500 Second Timer in Seconds

  1. The timer at the top of this page is already set to 08:20. Simply press Start Timer.
  2. Give your countdown a name in the text field, switch on the alarm and pick the sound you like best.
  3. Need intervals? Use Repeat Timer or add more timers. They will run one after another automatically.
  4. Switch to fullscreen for big digits and save your configuration with Export Settings to load it again later.

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Related timers with ready-made programs:

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Frequently Asked Questions About the 500 Second Timer

How long is a 500 second timer?

A 500 second timer runs for exactly 8 minutes and 20 seconds. That equals 8.33 minutes.

Can I pause or repeat the 500 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 500 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 500 Seconds

8 minutes and 20 seconds can be a lot or a little. It depends on how you use them. With a visible countdown you plan better, procrastinate less and finish what you started. Your 500 Second Timer is ready when you are.

Plan Your 500 Seconds

Numbers that help you use the 500 second timer in practice, all calculated for exactly 8 minutes and 20 seconds.

When Does a 500-Second Countdown End?

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

StartTimer ends
07:00 (7:00 am)07:08:20 (7:08:20 am)
09:00 (9:00 am)09:08:20 (9:08:20 am)
12:00 (12:00 pm)12:08:20 (12:08:20 pm)
14:30 (2:30 pm)14:38:20 (2:38:20 pm)
18:00 (6:00 pm)18:08:20 (6:08:20 pm)
21:00 (9:00 pm)21:08:20 (9:08:20 pm)

Countdown Milestones

  • A quarter done: after 2 minutes and 5 seconds, with 6 minutes and 15 seconds remaining.
  • Halfway point: after 4 minutes and 10 seconds, with 4 minutes and 10 seconds remaining.
  • Three quarters done: after 6 minutes and 15 seconds, with 2 minutes and 5 seconds remaining.
  • Last 10 percent: after 7 minutes and 30 seconds, with 50 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 500 Seconds

  • Tabata-style 20/10: 16 rounds of 20 seconds work and 10 seconds rest, which makes 2 complete 4-minute Tabata blocks.
  • 30/30 intervals: 8 rounds of 30 seconds on and 30 seconds off.
  • EMOM (every minute on the minute): 8 minutes, each starting with a fixed set of reps.

Calories Burned in 500 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)29 kcal39 kcal
Brisk walking (5.6 km/h · 3.5 mph)36 kcal48 kcal
Jogging, general58 kcal78 kcal
Running (9.7 km/h · 6 mph)82 kcal109 kcal
Cycling, moderate (19-22 km/h)67 kcal89 kcal
Swimming laps, moderate48 kcal64 kcal
Jumping rope, moderate98 kcal131 kcal
Hatha yoga21 kcal28 kcal

How Far You Get in 500 Seconds

Distance covered at typical average speeds without stops:

Way of movingSpeedDistance
Walking5 km/h694 m (759 yd)
Running10 km/h1.39 km (0.86 mi)
Cycling20 km/h2.78 km (1.73 mi)
Car on the motorway100 km/h13.9 km (8.63 mi)

500 Seconds Compared With Real-World Durations

  • 07:27: Metallica’s “One” runs about 7 minutes and 27 seconds on the album …And Justice for All. (53 seconds shorter than this timer)
  • 07:32: The longest possible total solar eclipse lasts about 7 minutes and 32 seconds. (48 seconds shorter than this timer)
  • 08:02: Led Zeppelin’s “Stairway to Heaven” runs about 8 minutes. (18 seconds shorter than this timer)
  • 08:19: Sunlight needs about 8 minutes and 20 seconds to travel the 149.6 million km to the Earth. (same length as this timer)
  • 08:30: The Space Shuttle reached orbit about eight and a half minutes after liftoff. (10 seconds longer than this timer)