Time flies when it's 80% humidity

I was chilling at the Starbucks in Kichijoji, sipping on an iced Chai Tea Latte and flipping through my Japanese textbook. I was thinking, "Man this holiday is loooong." Suddenly my phone rings and it's my boss.

Boss: "Simon, where are you?"
Me: "I'm in Kichijoji."
Boss: "Why are you in Kichijoji?"
Me: (pause) "Is there class today?!?!"

I think you know how the rest of this turns out.