Convert Miltary Time to AM / PM Time

How can I convert military time to 12 hour time in a contrologix 5000 plc? The machine already has a GSV block and it has a destination named clock and if I look at that tag it has the data and time in it. I just want to display it with a event on the HMI page and it is on the page now like I want but it is in military hours. How is a simple way to change this? I am just starting to learn this plc so the elegant way would confuse me. I need down and dirty simple?

To create a PM bit (0 = AM, 1 = PM) and '12Hour' from '24Hour'

If 24Hour > 11 then PM = 1 else PM = 0

12Hour = 24Hour
If 12Hour = 0 then 12Hour = 12
If 12Hour > 12 then 12Hour = 12Hour - 12