No. The default in Rule XXII is 30 hours.
I think the amount of debate time can be changed at any time, but I assume that means via UC.
Frist has that UC now. He filed the cloture motion, asserted that it would be voted at 4:30 PM Monday (which is an odd time, as Rule XXII says one hour after open of business), and asked for UC that if the cloture motion passes, the vote on the nominee would be at 11:00 AM on Tuesday. There was no objection to that agreement.
http://rules.senate.gov/senaterules/rule22.php ...
After no more than thirty hours of consideration of the measure, motion, or other matter on which cloture has been invoked, the Senate shall proceed, without any further debate on any question, to vote on the final disposition thereof to the exclusion of all amendments not then actually pending before the Senate at that time and to the exclusion of all motions, except a motion to table, or to reconsider and one quorum call on demand to establish the presence of a quorum (and motions required to establish a quorum) immediately before the final vote begins. The thirty hours may be increased by the adoption of a motion, decided without debate, by a threefifths affirmative vote of the Senators duly chosen and sworn, and any such time thus agreed upon shall be equally divided between and controlled by the Majority and Minority Leaders or their designees. However, only one motion to extend time, specified above, may be made in any one calendar day.
Thanks, I don't know how I got that 100 hours stuck in my head. Looks for a win for our side, finally. I imagine Frist will try for another UC to move to the vote at least once more prior to the cloture vote. I wonder if the moonbats who want to have the cloture so badly (to 'flush' out the traitors, in their view) will convince someone to object to that final UC, if Reid is inclined to let it pass?