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There were several versions of the bell schedule that went around in the last two weeks.  The official bell schedule for SY2008-2009 is as follows:

Bus Arrival 12:45PM
Warning Bell 1:00PM
Block I 1:05-2:15PM (70 minutes)
Lunch 2:15-3:00PM (45 minutes)
Block II 3:05-4:15PM (70 minutes)
Break 4:15-4:30PM (15 minutes)
Block III 4:35-5:45PM (70 minutes)
Dismissal 5:45PM

Again, this is not an Islander Day bell schedule that encompasses all periods (1 to 6) in one day.  An Islander Day bell schedule will be made available prior to the start of class with classes lasting around 30 minutes.  An Islander Day bell schedule usually occurs on the first and last days of school.

This is a Green/Gold schedule that has green (odd) days of periods 1,3,5 as the word "green" is odd in its letter count and gold (even) days of periods of 2,4,6 as the word "gold" is even in its letter count.