| School | Full Day | Half Day Dismissal |
| Gardner High School | 7:15 a.m. - 2:00 p.m.
| 10:00 a.m.
|
| Gardner Academy | 7:05 a.m. - 1:55 p.m.
| 9:45 a.m.
|
| Gardner Middle School | 7:45 a.m. - 2:30 p.m.
| 10:30 a.m.
|
| Elm Street School | 9:00 a.m. - 3:15 p.m.
| 11:30 a.m.
|
| Waterford Street School | 9:15 a.m. - 3:30 p.m.
| 11:45 a.m.
|
| Waterford Street School - Preschool | AM: 9:15 - 12:00 PM: 12:45 - 3:30
| No preschool on half days
|
NOTE: Some grades have different start dates. See below for information.
Gardner High School - August 30, 2021: Grade 8 Full Day 7:15 a.m. - 2:00 p.m., Grades 9-12 7:15 - 10:00 a.m. dismissal
Gardner Academy - August 30, 2021: All Students 7:05 a.m. - 12:25 p.m., New Students 12:25-1:55 p.m.
Waterford Street School - August 30, 2021: Grade 1 ONLY 9:15 a.m. -3:30 p.m.
August 31, 2021: Grade 1 full day, Kindergarten begins, last names A-J - 1/2 day (9:30 -11:30 a.m.)
September 1, 2021: Grade 1 full day, Kindergarten begins, last names K-Z - 1/2 day (9:30 -11:30 a.m.)
September 2, 2021: Grade 1 & K full day
September 3, 2021: No School
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