Conditional Formatting on unit assignment and time

[Mr. H2]

I've attached the second spreadsheet for better understanding.

I am trying to develop a formula that will compare the a unit number from one table (or range of cells) and highlight the correct times for that specific unit on another set of cells. I'm not sure if it should be a VLOOKUP, IF Statement, or what. I'm doing appointment scheduling, so it needs to compare the unit and its times and highlight the cells accordingly for each specific unit.

[Pepe Le Mokko]

This should get you started.
There seems to be something odd with your intervals in rows 1 and 2
For example, the first interval is from 8 till 8:15 and the next from 8:30 to 8:45
Shouldn't the second interval start when the first ended?

[Mr. H2]

PERFECT - Thank You so much.

[Mr. H2]

How do I highlight different blocks of time for the same unit. It is only highlighting one "block of time". For example, if unit one is 08:00 to 10:00 and later another time is 13:00 to 15:00. It does not highlight the second block of time.