Mark Your Calendars!

2026-2027 Calendar of Sessions & Breaks

Sessions & Breaks At A Glance

  • Session 1, 2026: 7 weeks, Aug. 24 – Oct. 9
    • No OSA classes on Monday, Sept. 7
    • Session break, no OSA classes: Oct. 12-16
  • Session 2, 2026: 8 weeks, Oct. 19 – Dec. 18
    • No OSA classes on Wednesday, November 11
    • Mid-session break, no OSA classes Nov. 23 – 27
    • Winter break, no classes: Dec. 21 – Jan. 8
  • Session 3, 2027: 9 weeks, Jan. 11 – March 19
    • No OSA classes on Monday, Jan. 18
    • Mid-session break: Friday, Feb. 12 through Friday, Feb. 19
    • Session break, no OSA classes: March 22 – April 2
  • Session 4, 2027: 8 weeks, April 5 – May 28
    • No OSA classes on Monday, May 31
  • Imaginession 2027: June 1-3
  • Summer Tutoring 2027: TBD

Upcoming Dates to Remember

Please check back frequently as this page is updated regularly.

The session schedule for One Spark Academy (a “Learning Center”) follows the calendar for the local district, CVUSD. Classes for OSA are closed on national or observed legal holidays, not necessarily religious holidays.

A PDF of the 2026-2027 Calendar of Sessions & Breaks is here: OSA Calendar 2026-2027

NOVEMBER

  • Tuesday, 11th: Veterans’ Day (no OSA classes)
  • Monday, 16th: Giving Campaign begins (through January 4th)
  • Friday, 20th: Giving Thanks Feast, 1:00-3:00 (off-site)
  • 23rd – 27th: Mid-Session break (no OSA classes)

DECEMBER

  • Tuesday, 1st: Pre-Registration for Session 3 (1/11 – 3/19)
  • 14th-18th: Secret Elves Gift Exchange
  • 21st – January 10: Winter Break (no OSA classes)

JANUARY

  • Monday, 11th: Session 3 begins! (1/11 – 3/19)
  • Monday, 18th: Federal holiday for MLK Jr. (No OSA classes)
  • Tuesday, 26th: Alternative High School Night, 6:00-8:00 PM

FEBRUARY

  • 8th-11th: Friendship Week
  • 12th-19th: Mid-Session Break (No OSA classes)
  • Tuesday, 23rd: Pre-Registration for Session 4 (4/5 – 5/28)
  • Thursday, 29th: Halloween at OSA!

MARCH

  • Tuesday, 8th: Women in History Night, 6:00-8:00 PM
  • 22nd-April 2: Spring/ Session Break (No OSA classes)
  • OSA Tours for 2027-2028 TBA

APRIL

  • Monday, 5th: Session 4 begins! (4/5 – 5/28)
  • Monday, 5th: Pre-registration window for 2027-2028 opens for current families
  • OSA Tours for 2027-2028 TBA

MAY

  • Saturday, 1st: Ignite a Spark Spring Event, 6:00-9:00 PM
  • 12th-16th: Session Break (No OSA classes)
  • Tuesday, 4th: Registration for Imaginession (6/1-6/3)