equinox

during an equinox the sun is on a certian side of the earth depending on which season it is. During summer it is tilted toward the earth and during winter i is tilted away. This day is when everyone on earth has 12 hours of day and 12 hours of night. After the summer one until the winter one our days are longer. When the winter one it is more night than it is day. These days only occur 2 times in one year. Due to the shadow on the earth from the sun is what determines how long our day or night it. That is what I know about an equinox.