I apoligize for not being more thurough.

What I have is three shifts: A = 23:00 - 6 :59; B = 7:00 - 14:59; and C =
15:00 - 22:59.

In one column will be the times and another will be for the shift letter.
What I wanted to do was go through the column with the times listed and
determine which shift it belonged to and then print the shift letter in the
other blank column.

If you need anymore information please ask.