The spinning of the earth on its axis causes days to turn into nights. A difference of one hour is created between two meridians which are 15 degrees apart. A change in the direction of wind and ocean currents. The rise and fall of tided every day. Because the planet would not rotate away from the sun, a “day” would last for the entire year it took for the Earth to orbit its star. About half your time would be spent in sunlight, and during the other half you would be in the dark. Day and night would each last about six months.