Changes to Boston Public Schools’ start and end times are being greeted differently in different quarters — with lots of public uproar and some quiet cheers and counter-arguments.

Generally, next fall’s proposed “bell times” effectively flip a staggered school day. More young children will start and end school earlier, while most high school students will start later.

District officials and some parent advocates say those changes are backed by sleep science, fairer and more affordable, due to savings on transportation.

But it was mainly the uproar on display Wednesday night at BPS’s Dudley Square headquarters, among parents and politicians saying the district botched the plan’s implementation and is letting cost concerns drive policy for too many families.

Read and listen to the full report on the WBUR website.