There's going to be a slew of acceptances tonight via AADSAS. Lots of schools have already submitted the acceptance notice to AADSAS. Midnight's when it changes and becomes visible. Stay tuned to SDN for some fun. There's more excitement Dec 1st than Jan 1st.
I was also wondering this.. is "midnight" considered the time zone for each individual school (if they were to update AADSAS at midnight) or is midnight for all schools whatever time zone AADSAS is located in