Here’s how to calculate the amount of time you spend outdoors in the fresh air
Outside time in fresh air ÷24 hours x 100
This shows you how much time you are spending cooped up, inside your house, the office, school, a car, train, bus etc.
But,you might say
“I am asleep for at least 7. 5 hours so that calculation is not fair since I need to sleep!”
Let us calculate the amount of waking time we spend outdoors in fresh air.
Outside time in fresh air ÷ 16.5 X 100
I am aiming for at least 6% of my waking hours to be out getting some fresh air.