Hi, I think in metric units, so almost everything is some form of a power of 10, like a kilogram is a 1000 grams, etc.
Sometimes I will think of an hour and half as 150 minutes before remembering that it is 90 minutes.
Does something similar happen to imperial units users? Because as far as I understand you don’t have obvious patterns that would cause you to make these mistakes, right?
The thing about time is that any likely division of an hour that you’d like, there’s an easy and even division. /2 = 30, /3 = 20, /4 = 15, /5 = 12, /6 =10, /10 = 6 and vice versa.
It’s pretty easy to get in the mind state of thinking a half hour is 30 minutes, or more specifically you can think 1.5 hours * 60 minutes / hour. The hours cancel out and you get 90 minutes.