Set your alarm, because tomorrow's total lunar eclipse is one you don't want to miss—the next one won't happen for three years. If you're really serious about seeing the reddish moon, you'll also want to hightail it to North America's western coast, pronto. The entire eclipse will be visible there, starting around 4:45am PT tomorrow, reports National Geographic. The more westward you go the better, notes the AP, which reports that the Pacific, Australia, and parts of Asia are the prime viewing locations. The highlight—when the full moon is entirely blocked from direct sunlight, called totality—will last from 6:05am to 6:57am.