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Academic Calendar

Upcoming Dates

  • Sep
    20

    Dalton Homecoming

    Dalton Homecoming 2025 - Saturday, September 20, 10:00 AM - 3:00 PM at Randall's Island. Kick off the school year with the whole community at the all-school Homecoming and Family Fun Day! Join us for Varsity, Junior Varsity, and MS games, an all-school picnic, an alumni tent, sportswear sale and more activities for all ages.

    Shuttle buses will leave 87th Street and 3rd Avenue every 30 minutes starting at 9:00 AM, and loop back between there and the Randall's Island Fields throughout the day until the end of the football game. The last shuttle will leave 87th Street at 2:00 PM. 

    See here for further details, including game schedules.
  • Sep
    23

    Rosh Hashanah — School Closed

  • Oct
    2

    Yom Kippur — School Closed

  • Oct
    13

    Columbus/Indigenous People’s Day — School Closed

  • Oct
    14

    Professional Day — School Closed for Students

  • Oct
    20

    Diwali — School Closed

  • Oct
    31

    MS/HS Report Writing (no MS/HS classes)

  • Nov
    13

    FP Fall Conferences (FP early dismissal)

  • Nov
    14

    FP/MS/HS Fall Conferences (no classes)

  • Nov
    26

    Thanksgiving Break — School Closed

  • Dec
    1

    Classes Resume

  • Dec
    19

    Candlelighting & Noon Dismissal

  • Dec
    22

    Winter Break

  • Dec
    29

    Winter Break

  • Jan
    5

    Classes Resume

  • Jan
    19

    MLK, Jr. Day — School Closed

  • Jan
    20

    Professional Day — School Closed for Students

  • Feb
    6

    FP Report Writing Day (no FP classes)

  • Feb
    16

    President’s Day — School Closed

  • Feb
    17

    Lunar New Year — School Closed (Ramadan starts)

  • Feb
    23

    MS/HS Report Writing Day (no MS/HS classes)

  • Mar
    5

    FP Winter Conferences (FP early dismissal)

  • Mar
    6

    FP Winter Conferences (no FP classes)

  • Mar
    11

    HS Report Conferences (no HS classes)

  • Mar
    13

    MS Report Conferences (no MS classes)

  • Mar
    20

    Eid al-Fitr — School Closed

  • Mar
    23

    Spring Break

  • Mar
    30

    Spring Break

  • Apr
    2

    Passover — School Closed for Spring Break

  • Apr
    3

    Good Friday — School Closed for Spring Break

  • Apr
    5

    Easter

  • Apr
    6

    Classes Resume

  • May
    15

    FP Report Writing Day (no FP classes)

  • May
    25

    Memorial Day — School Closed

  • Jun
    10

    Arch Day — Last Day of Classes

  • Jun
    11

    Graduation Day

  • Jun
    19

    Juneteenth

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Holidays, Closures, & Key Dates

List of 11 items.

  • August 2025

    • August 13: Pre-Season Athletics (Football)
    • August 14: Pre-Season Athletics (Varsity B/G Soccer and Volleyball)
    • August 17-19: Peer Leadership Retreat
    • August 18: New Faculty/Staff Orientation
    • August 18: Pre-Season Athletics (JV B/G Soccer and Volleyball)
    • August 25: Pre-Season Athletics (Tennis, Cross Country)
    • August 25: Opening Faculty/Staff Meetings
    • August 25: 9th Grade Newly Admitted Student Orientation (6:00 PM)
    • August 26: 9th Grade Orientation & Clubs Fair (12:30-4:30 PM)
    • August 27-29: 9th Grade Retreat at Brant Lake Camp
    • August 28: Middle School New Student Orientation

  • September 2025

    • Monday, September 1: Labor Day—School Closed
    • Thursday, September 4: Classes Start
    • Saturday, September 20: Homecoming
    • Tuesday, September 23: Rosh Hashanah—School Closed

  • October 2025

    • Thursday, October 2: Yom Kippur—School Closed
    • Monday, October 13: Columbus/Indigenous People’s Day—School Closed
    • Tuesday, October 14: Professional Development Day—School Closed for students
    • Monday, October 20: Diwali—School Closed
    • Friday, October 31: MS/HS Report Writing (no MS/HS classes)

  • November 2025

    • Thursday, November 13: FP Fall Conferences (FP early dismissal)
    • Friday, November 14: FP/MS/HS Fall Conferences (no classes)
    • Wednesday, November 26 – Friday, November 28: Thanksgiving Break—School Closed

  • December 2025

    • Monday, December 1: Classes Resume
    • Friday, December 19: Candlelighting & Noon Dismissal
    • Monday, December 22 – Friday, January 2: Winter Break

  • January 2026

    • Monday, January 5: Classes Resume
    • Monday, January 19: MLK Jr. Day—School Closed
    • Tuesday, January 20: Professional Day—School Closed for Students

  • February 2026

    • Friday, February 6: FP Report Writing Day (no FP classes)
    • Monday, February 16: President’s Day—School Closed
    • Tuesday, February 17: Lunar New Year—School Closed (Ramadan starts)
    • Monday, February 23: MS/HS Report Writing Day (no MS/HS classes)

  • March 2026

    • Thursday, March 5: FP Winter Conferences (FP early dismissal)
    • Friday, March 6: FP Winter Conferences (no FP classes)
    • Wednesday, March 11: HS Report Conferences (no HS classes)
    • Friday, March 13: MS Report Conferences (no MS classes)
    • Friday, March 20: Eid al-Fitr—School Closed
    • Monday, March 23 – Friday, April 3: Spring Break

  • April 2026

    • Thursday, April 2: Passover—School Closed for Spring Break
    • Friday, April 3: Good Friday—School Closed for Spring Break
    • Sunday, April 5: Easter
    • Monday, April 6: Classes Resume

  • May 2026

    • Wednesday, May 6: 8th Grade Registration Conference
    • Friday, May 15: FP Report Writing Day (no FP classes)
    • Monday, May 25: Memorial Day—School Closed

  • June 2026

    • Wednesday, June 10: Arch Day—Last Day of Classes
    • Thursday, June 11: Commencement
    • Friday, June 19: Juneteenth—School Closed

Grades K-3

53 East 91st Street, New York, NY 10128

Grades 4-12

108 East 89th Street, New York, NY 10128

Physical Education Center

200 East 87th Street, New York, NY 10128

Contact Info

212-423-5200    |    info@dalton.org

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