What time of day are CSS and FAFSA deadlines?

Some of my college financial aid deadlines are “by February 1st.” Is this January 31st 11:59 pm or February 1st 11:59 pm?

Why does it matter? Just get it done. There is no reason to wait until the last possible minute (at least that I can think of)

Because we didn’t want to estimate and then have to re do it, and we just got the required paperwork.

Then do it tonight