Don’t worry, there are no stupid questions here, and enabling this sort of back and forth is exactly the reason Uphill Athlete exists.
This is a very common concern/question. For people with a 5-day-a-week job, which is most people, it can be impossible to do longer duration workouts mid-week.
Let’s look at a simple, yet typical, weekly training schedule during the beginning phase of the base period (no intensity work yet):
Tues: Aerobic Capacity #1 (20% of weekly volume)
Wed: Strength #1
Thursday: Aerobic Capacity #2 (15% of weekly volume)
Friday: Aerobic Capacity #3 (15% of weekly volume)
Saturday: Long Aerobic Capacity: (50% of weekly volume)
Sunday: Strength #2 and/or skill day (such as climbing)
So when you get to 10 hours per week, if we take out 2 hours for strength that leaves 8 hours for aerobic capacity. That translates to the following times for aerobic capacity workouts:
Thurs: 36 min
Friday: 36 min
Sat: 4 hours
So that keeps the schedule less lime-intensive mid-week and puts the long run on a weekend day when it’s easier to get out and get the long workout in. Hope that helps.