City officials have identified 20 public middle schools whose sixth graders won’t be hearing the dismissal bell until 6 p.m. come the fall.

The schools — six each in The Bronx and Brooklyn, five in Queens and three in Manhattan — are participating in a pilot program that extends the school day by 2.5 hours.

A total of 2,000 students will receive the extra schooling and intensive literacy help for the entire school year beginning in September.

The program, a joint Department of Education and City Council production, is expected to cost $19 million over three years.

Non-profits such as Robin Hood Foundation and other private firms are contributing part of the funding.

Here’s the full list of schools:

School Name/Borough

Juan Morel Campos Secondary School/Brooklyn

M.S. 223 The Laboratory School of Finance and Technology/Bronx

Waterside School for Leadership/Queens

PS/IS 116 William C. Hughley/Queens

Queens United Middle School/Queens

Eagle Academy for Young Men/Bronx

The Highbridge Green School/Bronx

East Flatbush Community Research School/Brooklyn

P.S. 043/Queens

J.H.S. 143 Eleanor Roosevelt/Manhattan

South Bronx Academy for Applied Media/Bronx

I.S. 30 Mary White Ovington/Brooklyn

Renaissance School of the Arts/Manhattan

Thurgood Marshall Academy for Learning and Social Change/Manhattan

I.S. 340/Brooklyn

Andries Hudde/Brooklyn

Frederick Douglass Academy V. Middle School/Bronx

P.S. 109/Brooklyn

J.H.S. 123 James M. Kieran/Bronx

Village Academy/Queens