Worship Resources for Promotion Sunday and Rally Day Rally Day. Rally Day is observed in some congregations to celebrate a new start or a renewed effort in involving children, youth, and adults in Sunday morning classes for Christian education. Rally Day may coincide with Promotion Sunday, but it may be observed at a different time. Rally Day ideas - Bridget's Gazette - LiveJournal Rally Day ideas: 1st – Rally Day is August 22. Make this an official “Invite a Friend Sunday.” 2nd – Scavenger Hunt during Sunday School - Participants follow clues made by the organizers. The clues are in the format of giving a Bible verse and a certain word (such as 1st, 2nd, etc.) so they know where to go.