Time Display in Views shows as 24 hour display after converting to R6

I have a view that was created in R5 that includes a time field.

Prior to the servers being upgraded, the times were being displayed in the 12 hour format (1:00 PM). After upgrading the servers to R6, the times now display in 24 hour format (13:00).

Is there a server setting, or another property that I should check? I can’t seem to find why they are displaying incorrectly.