Here's the 2011 Raceday Schedule it may change a bit for 2012 but basically this is the program.
If I am not staying at the track I try to arrive 0600-0630. Get set up, pre-tech and tech before riders meeting.
Practice starts @~0800
Saturday
Mandatory Riders Meeting 7:45am
Practice till 11:15
NGTU
Production 250 Cup - Race 1
Formula 40
Lunch
MWSS
LWGP
HWSS
NGTO
OSS
LW/MW End
HW/Open End
Superstreet practice
Superstreet Launch
Superstreet Race
Sunday
Mandatory Riders Meeting 7:45am
Practice till 10:00
ROR Qualifying
Opening Ceremonies
Production 250 Cup - Race 2
STGTO
MWSB
LOR/MVGTU
OSB
Thunderbike
Lunch
ROR
AGTU
STGTU/MVGTO
HWSB
COLO
AGTO