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Our School
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Mission & Values
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Voices of Dalton
Leadership
The Helen Parkhurst Institute
History
Strategic Plan
Apply
Apply to Dalton
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Affording Dalton
Meet the Team
Learning
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High School
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Academic Calendar
Upcoming Dates
Nov
8
Diwali - School Closed
11/8/2026
to
11/8/2026
Nov
13
FP/MS/HS Fall conferences - no classes
11/13/2026
to
11/13/2026
Nov
25
Thanksgiving Break - School Closed
11/25/2026
to
11/27/2026
Dec
21
Winter Break - School Closed
12/21/2026
to
12/25/2026
Dec
28
Winter Break - School Closed
12/28/2026
to
1/1/2027
Jan
4
School Reopens
1/4/2027
Jan
18
MLK Jr. Day - School Closed
1/18/2027
to
1/18/2027
Feb
6
Lunar New Year - School Closed (Ramadan Starts)
2/6/2027
to
2/6/2027
Feb
7
Ramadan Starts
2/7/2027
to
2/7/2027
Feb
12
FP/MS/HS Report Writing Day - no classes
2/12/2027
to
2/12/2027
Feb
15
Presidents' Day - School Closed
2/15/2027
to
2/15/2027
Feb
16
Professional Day - No Classes
2/16/2027
to
2/16/2027
Mar
5
FP/MS/HS Winter Conferences - no classes
3/5/2027
to
3/5/2027
Mar
9
Eid al-Fitr - School Closed
3/9/2027
to
3/9/2027
Mar
15
Spring Break - School Closed
3/15/2027
to
3/19/2027
Mar
22
Spring Break - School Closed
3/22/2027
to
3/26/2027
Mar
26
Good Friday - School Closed for Spring Break
3/26/2027
to
3/26/2027
Mar
28
Easter - School Closed for Spring Break
3/28/2027
to
3/28/2027
Mar
29
School Reopens
3/29/2027
Apr
22
Passover - School Closed
4/22/2027
to
4/22/2027
May
18
Eid al-Adha - School Closed
5/18/2027
to
5/18/2027
May
31
Memorial Day - School Closed
5/31/2027
to
5/31/2027
Jun
19
Juneteenth - School Closed
6/19/2027
to
6/19/2027
1
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23
Download 2026-27 Academic Calendar
View Full Calendar
List of 11 items.
August 2026
August 17: Admin Team Retreat
August 19: Pre-Season Athletics (Football)
August 20: Pre-Season Athletics (Varsity B/G Soccer and Volleyball)
August 24: Pre-Season Athletics (JV B/G Soccer and Volleyball)
August 24: New Faculty/Staff Orientation
August 24-26: Peer Leadership Retreat
August 31: Pre-Season Athletics (Tennis, Cross Country)
August 31: Opening Faculty/Staff Meetings
August 31: 9th Grade Newly Admitted Student Orientation (6:00 PM)
September 2026
September 1: 9th Grade Orientation
September 2-4: 9th Grade Retreat at Brant Lake Camp
September 3: Middle School New Student Orientation
Monday, September 7: Labor Day—School Closed
Wednesday, September 9: Classes Start
Saturday, September 12: Rosh Hashanah—School Closed
Saturday, September 19: Homecoming
Monday, September 21: Yom Kippur—School Closed
October 2026
Monday, October 12: Columbus/Indigenous People’s Day—School Closed
Tuesday, October 13 Professional Day—School Closed for students
Friday, October 30: HS Report Writing (no HS classes)
November 2026
Sunday, November 8: Diwali—School Closed
Thursday, November 12: FP Fall Conferences (FP early dismissal)
Friday, November 13: FP/MS/HS Fall Conferences (no classes)
Wednesday, November 25 – Friday, November 27: Thanksgiving Break—School Closed
Monday, November 30: Classes Resume
December 2026
Friday, December 18: Candlelighting & Noon Dismissal
Monday, December 21 – Friday, January 1: Winter Break
January 2027
Monday, January 4: Classes Resume
Monday, January 18: MLK Jr. Day—School Closed
February 2027
Saturday, February 6: Lunar New Year—School Closed
Sunday, February 7: Ramadan starts
Friday, February 12: FP/MS/HS Report Writing Day (No classes)
Monday, February 15: President’s Day—School Closed
Tuesday, February 16: Professional Day—School Closed for Students
March 2027
Thursday, March 4: FP Winter Conferences (FP early dismissal)
Friday, March 5: FP/MS/HS Winter Conferences (no classes)
Tuesday, March 9: Eid al-Fitr – School Closed
Monday, March 15 – Friday, March 26: Spring Break
Friday, March 26: Good Friday – School Closed for Spring Break
Sunday, March 28: Easter – School Closed for Spring Break
Monday, March 29: Classes Resume
April 2027
Wednesday, April 7: 8th Grade Registration Conferences (no 8th grade classes)
Thursday, April 22: Passover—School Closed
May 2027
Friday, May 14: FP Report Writing Day (no FP classes)
Tuesday, May 18: Eid al-Adha—School Closed
Monday, May 31: Memorial Day—School Closed
June 2027
Wednesday, June 9: Arch Day—Last Day of Classes
Thursday, June 10 – Friday, June 11: Closing Meetings for Faculty & Staff
Saturday, 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
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