Tonight I have been trying to book a flight using the 30% code from YTZ to YUL a week Friday. Everytime I enter my dates the system changes my return to December and tells me the duration of the trip is 202 days as opposed to the Fri to Sun I want.

Even better it refuses to book the trip telling me that the offer expires at 23:00 local time. Fine, except that I started to book the trip at 22:28 and gave up at 22:38. Just to point out to AC that Porter's site seems to keep much better track of time, I booked the same trip with them, at 22:45 and had no problems. Score one for the Raccoon.