Question

the period of rotation of the earth about its own axis ?

Answer 1

The period of rotation of earth about its own axis is 23 hours and 56 minutes on the normal clock.

Answer 2

More specifically, our rotation period (the time elapsed for one rotation) with respect to the stars is called a sidereal day. A sidereal day is 24 sidereal hours, or 23 hours and 56 minutes on a normal clock. Our clock time is based on the earth's rotation with respect to the sun from solar noon to solar noon.