I really couldn't remember the exact start/end dates, so they're pretty much estimated. If these are discrepancies, they are subtle ones. I'm not trying to exaggerate anything I simply didn't know the exact dates. How much weight do hiring managers put in background checks if you say you worked up until December when you actually stopped working around mid-November?
I've applied at a bunch of places, and I'm not sure if I should even mention it.
Edit: The job was an internship that lasted a few months. The jobs I'm applying for are entry level positions.