True Solar Time is the time calculated based on the sun's position relative to the horizon using astronomical formulas, reflecting the actual sunlight conditions at a specific location. When the sun is positioned at the local meridian, it is 'true noon'. Unlike the artificially divided standard time, True Solar Time varies with location and date due to the Earth's rotation and revolution. It can precisely restore the local actual time based on an individual's birth coordinates.
Should Divination Use True Solar Time?
True Solar Time is based on the actual position of the sun, whereas Mean Solar Time is an idealized uniform time convenient for daily use. Due to the Earth's rotation and revolution not being entirely uniform, a time difference occurs, known as the 'Equation of Time'. In simple terms: True Solar Time = Mean Solar Time + Equation of Time