I stand corrected. I was replying to the OP above which asked where in the constitution it says things must be dated.

It obviously doesn’t. Which is why he asked the rhetorical question.

It obviously doesn’t mandate mail in voting, which I why I also asked my rhetorical question.

The stupidness of his statement prompted the stupidness of my statement.

Obviously laws/policies and regulations dictate a whole variety of voting procedures from mail-in to in-person voting. All external to the constitution.