These dates appear to be (mostly) official: Roster deadline: Dec. 24, 6 p.m. (15-player roster limit) Trade deadline: As of now, March 15 (Target date) Guarantee date: All contracts become guaranteed Feb. 10. Start of 10-day contracts: Feb. 6. Active-roster reduction: Feb. 6. (12 active players) Rookie-scale extension deadline: Jan. 25. Playoff-eligibility: This deadline has yet to be established.