A one-day period is equal to twenty-fourths of a time, sixty minutes of time zone, time piece, and the time of the day showing the instrument is called hours.
The first found time is the sun. It was discovered by the Egyptians. The basic working principle of the solar clock is the time lines drawn on a surface and the determination of time with the help of a shadow formed by a stick on these watch lines. Since the sun completes a full cycle on the sky 24 hours (the Earth rotates around its axis in 24 hours), it is possible to find the average time of the region with the local average time and some corrections.
