"Basic planetary data. The mean distance of Earth from the Sun is about 149,600,000 km (92,960,000 miles). The planet orbits the Sun at a speed of 29.8 km (18.5 miles) per second, making one complete revolution in 365.256 days. As it revolves around the Sun, Earth spins on its axis and rotates completely once every 23 hours 56 minutes 4 seconds."