Greenwich, CT has developed seven possible plans to enable them to move the start time for their high schools:
“There are a range of options you can consider,” explained school transit expert Tom Platt of School Bus Consultants, who is advising the School Start Time Steering Committee.
“The cost can go from zero to a third higher than as is.” The seven options each employ different school-day formulas across all public schools. In all of them, classes would begin later at Greenwich High School, anywhere from 30 minutes to an hour and fifteen minutes later than at present. In some of the options, an elementary school day would start earlier than it does now, as early as 7:30 a.m. in Option 1, what Platt termed a “swap option” as it would entail the elementary school day beginning at 7:30 a.m., the same time Greenwich High starts now.
Read more at Examining Later Start Time Options