Apparent Solar Day. Interval between successive transits of true Sun across any given meridian.
Apparent Solar Time. Time based on hour angle of true Sun. Differs from Mean Solar Time by the 'Equation of Time'. Rarely used in civil time reckoning, but frequently used in navigation.
Apparent Sun.The visible Sun, as distinguished from the fictitious 'mean' and 'dynamical' suns.
Apparent Time. Apparent solar time.
Apparent Time of Change Tide. Apparent time of high water at a place at full or new Moon.
Apparent Wind. Movement of air past an observer when arising from a true wind and motion of observer. May differ from true wind in direction, force, or both of these, according to observer's motion relative to wind direction.