I've recently received a notice from a library. It says:
Should I visit the library on 13 or 14 of February? To put it another way, does
まで include the date before it or not?
I assume that it is a notice received from a library (please include the context in the question). The notice means that borrowing by you is suspended until Feb. 13, inclusive, and therefore you cannot check out library materials on Feb. 13.