Help with counting how many are within a time range, for a specific time

Hello all... I am having problems getting excel to count times properly. The funny thing is I have done this before, but for some reason I am unable to get this one to work right. I have put several hours into trying to figure it out and finally decided that I should get help.

I have attached what I am looking at and trying to work with. Basially it is a schedule and I am trying to count how many employee's I have coming in at each interval. For example, B14 is for the time durations of 0.00 - 0.29. I need B14 to count how many times the values in D56:D106 fall within B14.

Help!!!

Thanks!

Steve