Academic Calendar 2024 – 2025

September 2024

  • Parent Luncheon | Wednesday 9/4 | Dusty's Wine Bar | 1:00p.m.
  • Open Houses | Friday 9/6 | ONS | 10:00a.m. - 2:00p.m.
  • Fall Term Begins | Monday 9/9 (Tuesday 9/10 for the TTh morning class)

      • October 2024

      • Halloween Parties | Wednesday 10/30, a.m. | Thursday 10/31, a.m. & p.m.

      November 2024

      • Thanksgiving Parties | Monday 11/25, a.m. | Tuesday 11/26, a.m. & p.m.
      • Thanksgiving Recess | Wednesday – Friday, 11/24 – 11/26

      December 2024

      • Holiday Parties | Thursday, 12/12 a.m. | Friday, 12/13 a.m. & p.m.
      • Last Day of Regular School | Friday, 12/13
      • Winter Break | Monday 12/16 thru Friday 1/10, 2025

      January 2025

      • Winter Term Begins | Monday 1/13, 2025
      • Martin Luther King Jr. Day Observance | Monday 1/20

      February 2025

      • Valentine’s Day Parties | Wednesday 2/12, a.m. and Thursday 2/13, a.m. & p.m.
      • Mid-Winter Recess | Friday, 2/14 thru Monday, 2/17

      March/April 2025

      • Spring Break | Monday 3/17 thru Tuesday 4/1
      • Spring Term Begins | Wednesday 4/2 (Thursday 4/3 for TTh class)
      • Earth Day | Tuesday 4/22

      May 2025

      • ONS Mother's Day Afternoon Tea | Afternoon Class only | Friday 5/9 | at ONS | 1:30p-3:30p
      • The After Party! | Friday 5/9 | All ONS Adults, past & present | Friday 5/9 | at ONS | 7:30p-10:30p
      • Memorial Day Observance | Monday, May 26

      June 2025

      • Last Day of Regular School | Wednesday 6/4
      • ONS Graduation | Thursday 6/5 | Graduation Practice 1:30p-3:30p | Graduation Event 6:00p-8:00p | venue TBA
        (Graduation is for Afternoon Class onward bound children and their families)
      • Annual End of Year Hot Dog Roast & Picnic Potluck | All current ONS Families | Friday 6/6 | from 11:30a | Central Park Pavilion
      • Summer Art and Nature Workshop 2025 | Tuesday, June 17 – Thursday, July 17

      Term Tuition Payment Dates

      • Wednesday, September 2, 2024
      • Monday, November 18, 2024
      • Monday, March 3, 2025