Suppose you have a time-keeping device that always reads precisely 12:00 when the Sun crosses your meridian.What kind of time is this clock keeping?
A)mean solar time
B)standard time
C)apparent solar time
D)universal time

Question

Quizplus · Accepted Answer

The clock is keeping apparent solar time, which is based on the position of the Sun in the sky. When the Sun crosses the meridian, it is at its highest point in the sky and marks the midpoint between sunrise and sunset. However, because the Earth's orbit is not perfectly circular and the axial tilt of the Earth's rotation axis is not perfectly aligned with the plane of the orbit, the actual time between successive solar noons may vary by up to a few minutes each day. Mean solar time and standard time attempt to correct for these variations and provide a consistent, reliable time standard for scheduling appointments, transportation, and other activities. Universal Time is a global standard that is based on the rotation of the Earth and is used primarily for scientific and astronomical purposes.

Suppose You Have a Time-Keeping Device That Always Reads Precisely