25 inches in circumference would be the largest normal (not  hydrocephalic) head.    The world record holder is Rick Walters.
Trending Now. Answers. Best Answer: 365 days, 5 hours, 49 minutes and 1.20 seconds (or 365.242375 days). The distance is not so easy; the Earth doesn't travel in a circle through space. With relation to the Sun, it does, but since the Sun is moving, the Earth moves in a helixal orbit.
It takes approximately 365.25 earth days of 24 hours each to complete one orbit around the sun. In calendars we just state 365 days, and we make up for the 0.25 days omitted in this calculation once every four years. This is called the 'leap year', where we have 366 days instead, with an extra day in February.