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2026-2027 School Year Calendar
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July 2026JulyJanuary 2027January (18)4
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SuMTuWThFSa3Independence daySuMTuWThFSa1New Year's Day19
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12341215No School - PD Day21
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567891011345678918Martin Luther King, Jr. Day16
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121314151617181011121314151615
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192021222324251718192021222320
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2627282930312425262728293015
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3121
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16
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August 2026August (4)February 2027February (15)21
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SuMTuWThFSa24Opening Day for staffSuMTuWThFSa15Presidents Day168
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125No School - PD Day12345616-19Vacation
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234567826Opening Day for students 1-1278910111213
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9101112131415 (1/2 day)14151617181920
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1617181920212226Full Day for Teachers &21222324252627
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23242526272829Paraprofessionals28
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303128
Opening Day for students PreK/K
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September 2026September (20)March 2027March (20)
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SuMTuWThFSa7Labor DaySuMTuWThFSa2No School - PD Day
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1234521Yom Kippur12345610Eid al-Fitr
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67891011127891011121326Good Friday
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1314151617181914151617181920
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2021222324252621222324252627
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2728293028293031
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October 2026October (21)April 2027April (17)
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SuMTuWThFSa12Indigenous Peoples' DaySuMTuWThFSa19Patriot's Day
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12312320-23Vacation
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4567891045678910
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1112131415161711121314151617
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1819202122232418192021222324
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25262728293031252627282930
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November 2026November (17)May 2027May (20)
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SuMTuWThFSa3No School - PD DaySuMTuWThFSa31Memorial Day
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123456711Veterans Day1
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89101112131425Early Release2345678
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1516171819202126Thanksgiving Day9101112131415
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2223242526272827Vacation16171819202122
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293023242526272829
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3031
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December 2026December (17)June 2027June (11)
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SuMTuWThFSa24VacationSuMTuWThFSa15
180 Days for students-half day
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1234525Christmas Day1234515185 days for teachers-full day
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678910111228-31Vacation678910111215Paraprofessionals - 1/2 day
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131415161718191314151617181918Junteenth
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2021222324252620212223242526235 emergency days
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272829303127282930
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Holiday-schools closed
Instructional HoursHigh School Exam Days:
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School vacation-schools closed
Placentino K-2: 7:40 AM - 2:15 PM
TBD
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PD-schools closed
Session 1 Preschool: 7:50 AM – 10:20 AM
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First and last day of school
Session 2 Preschool: 11:20 AM – 1:50 PM
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Full Day Preschool: 7:50 AM - 1:50 PM
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Placentino & Miller only:
Miller Elementary: 7:40 AM - 2:18 PMSenior Exam Days:
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Early release conference days*
Adams Middle School: 8:25 AM - 3:03 PM TBD
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Evening conferences
High School: 8:15 AM - 3:03 PM(subject to change)
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Emergency/Early Release Times:
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*Grades PreK-5 only
Placentino 10:44 AM
High School Graduation
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TBD
Miller Elementary: 10:47 AM
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Adams Middle School: 11:32 AM
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High School: 11:32 AM
Updated:
3/12/26
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2026-27 Legal, Religious and Cultural Holidays
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Families and staff in the Holliston Public Schools represent diverse cultures, religions and
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countries of origin. Our school calendar conveys information to the community about when
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school is in session; however, there are additional days in the school year during which families may
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observe major religious holidays that may require students to be absent from school. Such observances will be
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considered excused absences from school, and all efforts will be made to assist students to
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make up work they may miss as a result of their absence. When students will be absent from
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school for such celebrations, families are encouraged to contact their child’s teacher in
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advance.
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2026 Holidays
2027 Holidays
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July
January
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3
Independence Day
1
New Year's Day
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18
Martin Luther King, Jr. Day
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September
86
7
Labor Day
February
87
12
Rosh Hashanah
15
Presidents Day
88
21
Yom Kippur
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March
90
October
10
Eid al-Fitr
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12
Indigenous Peoples' Day
26
Good Friday
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93
November
April
94
8
Diwali
19
Patriot's Day
95
11
Veterans Day
96
26
Thanksgiving Day
May
97
31
Memorial Day
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December
99
25
Christmas Day
June
100
19
Juneteenth