Good uses for a 12 minute timer
- The 12-minute run (Cooper test) for fitness
- Baking cookies (many recipes say 10 to 12 minutes)
- A short study sprint
- A cool-down walk
- Timed group work in class
- Hard-boiling large eggs
Tips
- For the Cooper test, run as far as you can until the alarm, then note the distance.
- For baking, check a minute or two early; ovens differ.
- The blocks turn orange in the last 2 minutes 24 seconds and red with stripes in the last 36 seconds.
12 minutes in other units
| Unit | 12 minutes |
|---|---|
| Minutes | 12 |
| Seconds | 720 |
| Hours | 0.2 |
| Milliseconds | 720,000 |
Questions and answers
What is the 12-minute run?
The Cooper test, published by Dr Kenneth Cooper in 1968: you run or walk as far as you can in 12 minutes, and the distance is used to estimate fitness.
How many seconds is 12 minutes?
720 seconds, or 0.2 hours.
Does the timer keep running if I switch tabs?
Yes. TimerNook works out the time left from your device clock and a fixed end time, not by counting ticks, so a background tab is still right. While a timer runs, the page also plays a tone too quiet to hear, so the browser keeps the tab awake; your browser may show a speaker icon on the tab. If you also tick "Notify me", you get a system notification at the end.
Will the alarm ring if my phone screen locks?
Not always. Phone browsers can pause web pages when the screen locks, and an iPhone on silent can mute browser sound. Keep the screen on; while the timer runs TimerNook asks the browser to keep the screen awake where that is supported. If the page was paused, the alarm rings as soon as you return.