Shouldn't you be rounding up to 25 minutes and calling it 3 miles?
In the ancient past, before GPS, I used to just call everything 5min/km. I sometimes think I should go back to that, so that I don't obsess over pace, but 6min/km would probably be more accurate for me now.
I could never run a mile in 24 seconds.
Yeah, I should, It would be a whole lot simpler though. I usually just turn on my watch and forget about it ever since I turned off the alert sound that it makes when you press it.