September 2025

Sep 1 Mon
- Labor Day
  John Dewey High School Events Calendar
Sep 4 Thu
- First day of school
  John Dewey High School Events Calendar
Sep 16 Tue
- PTA Nomination In person Meeting 6 PM – 7 PM (John Dewey High School, 50 Avenue X, Brooklyn, NY 11223, USA (Library))
  John Dewey High School Events Calendar
Sep 18 Thu
- Shorten Bell Schedule
  John Dewey High School Events Calendar
Sep 19 Fri
- Club Rush 3 PM – 3:30 PM (Front Lawn)
  John Dewey High School Events Calendar
Sep 20 Sat
- International Coastal Clean Up 10 AM – 12 PM (Kaiser Park- 2529 Neptune Ave, Brooklyn, NY 11224)
  John Dewey High School Events Calendar
- International Coastal Clean Up 10 AM – 12 PM (Kaiser Park, 2529 Neptune Ave, Brooklyn, NY 11224, USA)
  John Dewey High School Events Calendar
Sep 23 Tue
- Rosh Hashanah, schools closed 9/23/2025 – 9/24/2025
  John Dewey High School Events Calendar
Sep 24 Wed
- Rosh Hashanah, schools closed 9/23/2025 – 9/24/2025
  John Dewey High School Events Calendar