You don't need time.

Suddenly, a strange warmness overtakes you. You feel a bizarre sensation just beneath your skin, and a slow, erotic pulsing overtakes you. You close your eyes as beads of colorful sweat form on your youthful, exquisitely soft skin. The strange, multicolored liquid spreads and grows opaque, covering your body in what looks like liquid spandex. The shiny material warps and changes color, eventually forming into a new uniform. Your skirt and blouse are perfectly recreated, but your socks have been replaced with long stockings that leave just a little bit of bare skin between the garters and the hem of your skirt. Also, an assortment of fashionable bracelets encircle your wrists, your shiny magenta hair has been pulled back into a ponytail, and your pert rear is encased in lacy, delicate pink panties, though you seem to be lacking a bra. You think you might even be wearing makeup all of a sudden.

"I must be dreaming", you say to yourself as you search around for your books and decide the best course of action would be to assume a bizarre hallucinatory experience caused by the garlic pizza you ate last night until proven otherwise. You gather up your books and dash off towards the school, determinedly setting your mind on the upcoming test, deciding what club to join, and other distinctively mundane topics.