By simple calculations, Fry should have woken up a few seconds after midnight on January 1, 3000. BUT the earth does not rotate by our simple math. By rough estimation, the Gregorian (standard) calendar millennium is about 7 1/2 hours short of 1000 rotations of the earth around the sun. Therefore, Fry waking up during daylight hours and having plenty of time to do all the things he did can be explained by the fact that he was unfrozen at the end of 1000 Gregorian years, but the earth hadn't quite made it there. He was unfrozen at about 4:27 PM on December 31, 2999.