The plan is 4 x 500m (or 4 x 300 for sprinters) at an all-out, 100%, need the full recovery time, pace. The first interval will start at 5:55 sharp! That means you need to get there early to get warmed up and ready to go. The next interval will start at 6:15, then another at 6:35, then the last at 6:55. You get 20 minutes rest between these intervals, to allow you to run them as fast as you can each time.
I will be there at 5:30 or so to open up the cube, make sure to dress appropriately, and see you bright and early on Valentine's Day.