Sorry, I managed to figure out what was going on. It actually had nothing to do with the dates.

Ugh, i'm under a little bit of pressure this weekend which is causing me stress. I wasn't given all of the info regarding the client environment and not having a way to test my changes is driving me crazy. Unfortunately I don't have a way to contact them over the weekend. This will be the LAST TIME that I take a short assignment without speaking to the client first. Man, things are really messed-up there, LOL.