All joking aside

I

J: OK, you guys. Time is up. Get working.
M: It's still 12:30. We haven't even started lunch yet.
J: Be quiet, Matthew. All joking aside, go back to work.
M: All right, Mr. Johnson.

II

A: I will offer a million dollar bonus when the contract is made.
B: Wow!
A: All joking aside, we've come to a deadlock. Can anybody come up with a good idea?
B: I think we'll need about a week to gather new information.