During the Fall, Winter and Spring quarters, the "Core" classes take place from 11:30 - 2:30 daily, with a 30-minute break for lunch.  These classes are then followed by the "Grammar in Action" class from 2:50 - 4:14 Monday through Thursday.  

Fall, Winter and Spring quarters are 11 weeks long and offer 220 hours of instruction.  Summer quarter is only 7 weeks long, but it has the same number of instructional hours.  Typically in the Summer, classes are offered from 8:00 - 4:00 Monday through Thursday with several half-days on Fridays.