time zones
any one of 24 longitudinal strips on Earth about 15 wide on Earth;s surface in which local time is the same.
rotation
Spinning of Earths on its axis; used to measure time in days
revolution
motion of Earth around the Sun, used in measure time in years
ecliptic
path of Earths orbit around the Sun; from Earth, seen as the oath the Sun travels across the Zodiac
solstice
occurs twice a year in June and December, when Earth´s rotational axis is tilted the most toward, or the most away, from the sun
equinox
occurs twice a year in March and September, when Earth´s rotational axis is perpendicular to a line connecting the cent of Earth to the center of the Sun