The Sun arm with a golden hand attached to it shows three various times on the astronomical dial: common civil time, Old Czech Time, and Babylonian time. The oldest one, which is not used today, is the time in unequal hours, called Babylonian hours (or, for their astrological meaning, planetary hours). The Babylonian time is read approximately at the place where the golden Sun is located, or rather in the intersection of the Sun arm and the ecliptic on the fingery lines. The time between the sunrise and sunset was divided into 12 equal portions, whose duration changes in the course of the year. The contemporary common civil time divides the day into 2×12 equally long hours starting at midnight and at noon. The time of the old Czech (Italian) clock also divides the day into 24 equal hours counted from the sunset. It is indicated on the outward rotated dial – the 24‑hour ring. The golden star connected to the ecliptic ring indicates the sidereal time, which is counted from the moment of passing of the vernal point over the local meridian.