In the fourth paragraph, the term “8 p.m. Friday” appears. Mathmatically, I understand this. The rest...not so much.
Mathematically, yes. Culturally? 8PM Friday night is not usually considered the time to do heavy math.
Let's see, that's 7 p.m. + 1 p.m., 4 p.m. + 4 p.m, 8 a.m. + ...