January 19 — OA’s Birthday (third Saturday of January)
February 23 11:30 a.m. PST — Unity Day
This day recognizes the strength of the Fellowship worldwide. On the last Saturday in February, at 11:30 a.m. pacific standard time, OA members pause to reaffirm the strength inherent in OA’s unity.
April 29 – May 4 — World Service Business Conference, Albuquerque, New Mexico USA
August 29 – September 1 — World Service Convention, Cleveland, Ohio USA
November 16 — International Day Experiencing Abstinence (IDEA)
Celebrated the third Saturday in November, this day encourages OA members worldwide to begin or reaffirm their abstinence from compulsive overeating.
December 12 — Twelfth-Step-Within Day
Celebrated on December 12 (12/12) each year to encourage OA service boards, meetings and individual members to reach out to those within the Fellowship who are still suffering from compulsive eating behaviors.