After upgrading to 1.4.0, I noticed the date time format when adding a new general time slot was d/m/Y.
I changed my account preference to m/d/Y, but now the pre-filled date in the general timeslot is wrong, it has a date way out in 2011.
Changing my default back to d/m/Y corrects the suggested date in the general timeslot. I'm still stuck with d/m/Y though..
This behaviour is still present in 1.4.1