I get that, but it's just the idea of having the tractor use match the amount of time that is supposed to be going by. So if you run a tractor 12 hours a day everyday through spring and summer of 6 day seasons, it would show around 150 hours of use for 2 seasons of use which feels closer to reality than the 30 hours it would show now if you used 5x timescale.On 5x you can have a little under 5 real hours from midnight to midnight. Using a full tank of fuel in 5 hours is probably very unrealistic.
In other words, if you go through a full year in seasons, your tractor age, hours, fuel use, etc. should reflect a year's worth of use. It shouldn't depend on what timescale you use. A year is a year.