The NFL doesn’t really have an offseason, at least not for fans and media who follow the league. Although the players have several months off from football and on-field work, there are events going on involving contract negotiations, player scouting, and spring practices nearly every day of the year.
The 2017 offseason has its biggest date set for March 9th. That is the date on which the new league year begins, and along with it comes the start of the free agency period.
Here is a nearly-complete list of many of the high-profile (and some less-profile) dates to know as the offseason is underway for 24 teams around the league.