Continuously, at all times.
It takes 24 hours to turn its axis.
Yes, Earth does spin on its own axis. The axis is on a tilt of 23.5 degrees by memory.
because the earth is on an axis.
No , it takes 59 Earth days for Mercury for one rotation on its axis.
The earth rotates on its axis
176 earth days
24
243 Earth days.
The earth revolvs on its axis. 1 complete turn takes 24 hours
One. Well, not QUITE one, to be exact. It takes 23 hours 56 minutes for the Earth to turn precisely once on its axis.
Half a day, obviously.
24 hours