I suggest to my committee colleagues that the motion should be worded something to the effect that “the clerk acknowledges receipt of a motion”. Once that acknowledgement is made, whether it's sitting in an in-box....
For example, a committee member, through their staff, could submit a motion while we're actually sitting in committee right now. If hypothetically we were in the 48-hours scenario, does that qualify for the Thursday meeting, given that we're already past nine o'clock on Tuesday? The clerk wouldn't have a chance to read the e-mail until he returned to his office.
I think we really should be looking at when the clerk actually acknowledges receipt or confirmation of the notice of the motion. I think at that point in time, once that acknowledgement is made, the 24-hour clock starts ticking.