In the same manner as in the House: I call it the two-sleep rule, so when two days pass. That's not a strict 48 hours. If a motion came forward to the House even this afternoon, by the time we meet next, two days from this afternoon, you could have it at eleven in the morning. It's not a strict 48 hours. It's that we've gone to sleep twice--or at least most of us have.
On June 9th, 2011. See this statement in context.