Here is your 2015 NFL offseason calendar:
Feb. 16: First day for teams to designate franchise or transition players.
Feb. 17-23: NFL Scouting Combine, Lucas Oil Stadium, Indianapolis
March 10: 2015 league year and free agency period begin at 4 p.m. ET. All clubs must be under the 2015 salary cap before 4 p.m. ET.
March 22-25: Annual meeting, Phoenix
April 24: Deadline for restricted free agents to sign offer sheets
April 29: Deadline for prior club to exercise right of first refusal to restricted free agents.
April 30-May 2: NFL draft, Chicago, IL
May 8-11: First weekend after draft: Clubs may elect to hold their three-day post-draft rookie mini-camp from Friday through Sunday or Saturday through Monday.
May 15-18: Second weekend after draft: Clubs may elect to hold their three-day post-draft rookie mini-camp from Friday through Sunday or Saturday through Monday.
May 18-20: NFL spring league meeting, San Francisco
June 21-27: Rookie Symposium, Aurora, Ohio.
http://www.bigcatcountry.com/2015/2/5/7984283/nfl-calendar-dates-2015-free-agency-start-nfl-draft