Calvin and Hobbes by Bill Watterson for May 25, 1992
Calvin: Vortex goggles on? Here we go! We'll jump ahead to my bedtime and pick up my completed homework from my own future! Then we'll return to the present and we can goof off the rest of the evening! Here we are! You must be the 8:30 Calvin. Did you have a good trip? Hobbes: No. Pst! Why do you always go on these things?