Well, no. If you get it in before 3:30 on Friday, you want to be able to vote on something on Tuesday. I think if something gets in early in the day on Friday, you don't want it put off until Monday, because then you can't vote on it on Tuesday. So I would say “before 3:30 on Friday”; that would be, in effect, 48 working hours.
On February 5th, 2009. See this statement in context.