How to make up for 2 days a week

If the location works out you could save time by running to class. Most schools probably have showers you could use. It definitely sucks running with a bag for books, but it's an idea. If it's a lit class or something cheap you could buy two copies of each book used and store one in a locker at wherever you're showering.

Sleep early the night before, wake up early and run.

Or, run after the class is over in the night.

I think you know the answer & it's that window of training BETWEEN work (3:30) & the class (6:00). Try this:

3:00 small snack & bottle of water at work

3:30 drive to class (not sure how long it will take you)

4:30-5:30 run around campus

5:30 change out of soggy clothes. Wash armpits in sink. Fresh deodorant

5:45 arrive at class & EAT post-run snack or even meal (brought from home). (You can even through the first bit of class too. As a teacher/college prof., I don't mind students eating in class, esp. if it's non-disturbing food.)

A few years ago, I had to take a class during the summer & I was running during the lunchbreak. It sucked, but I was able to get 40+ minutes in.

Good luck!