Question 858570
I'm not completely understanding the question.
However, let's give it a shot.  If I've misunderstood, please post with more information.
A circle (clock face) has 360 degrees.
If the little hand is at 4, and the big hand is at 12, the angle between them is {{{1/3}}}of 360 (4 is {{{1/3}}}} of 12)
{{{1/3}}}*360 = 120