Courthouse calendars don't match with the episode's release date (November 14, 1960). Inside one of the cells hangs a calendar month where the 1st falls on a Sunday. There's not a month in 1960 where the 1st falls on a Sunday. The closest would be January of 1961. Meanwhile, in the back room hangs a calendar where the 1st falls on a Tuesday. With the subsequent month having only twenty-eight days, this would make it January (not a leap year, as is 1960). The closest Januarys with firsts on a Tuesday (whether a leap year or not) would be in 1957 or 1963.
When Ms. Rosemary is walking up to Andy's house to bring him the pie she baked you can see a car in the background over her right shoulder reversing like he's resetting for the scene.