The Earth rotates about its own axis once every 24 hours, which is one day. The Earth completes one orbit around the Sun in about 365.24 days, which is one year in the Gregorian calendar. Therefore, during one orbit around the Sun, the Earth rotates about its axis about 365.24 times. However, because the Earth's orbit is not exactly circular, the exact number of rotations can vary slightly from year to year.