In the Senate, if the Majority Leader decrees it, a day isn't over until the session is. And Harry Reid (D-NV) has so decreed. Channeling his best Bill Murray, he's told Republicans that they have 24-36 hours to reach some agreement on a filibuster rule they like, or he'll just go ahead and bring his own rule to the floor, one that's less-likely to meet with their approval, but with Democrats having the majority would pass.
So, we'll see what happens tomorrow. Or today. Or whatever it is.