Looks like the 4E game won't happen this weekend -- it's the big Korean Thanksgiving festival of Chuseok. Instead, we may do a one shot in my Megadungeon. Maybe. It's still not decided yet.
Anyway, if we do, I made up this simple little time tracker. Each hour has six Turn boxes, and every second one is shaded to remind me to roll for random encounters. Feel free to use it as you like, modify it, whatever.
Dungeon Delve Time Chart