Lookup value for certain time

I have time values in column B, prices in column C.
I want to place whatever price showing in cloumn C at 7am into cell G3.

What function do I need to use to accomplish this?

Assuming the times in column B have times only (no dates), and that there is an exact match, you could use

=VLOOKUP("7:00"+0, B1:C10, 2, FALSE)

If the times are in ascending order and you want the latest time not past 7AM,

=VLOOKUP("7:00"+0, B1:C10, 2)