March 17: Teams Announced @ 6:00 PM [EST] on TBS
March 19-20: Four Play-In Games
March 21: Entry Deadline @ 12:30 PM [EST]
First Week Of The Tournament
March 21-22: Round One - 64 Teams
March 23-24: Round Two - 32 Teams
Second Weekend Of Games
March 28-29: Round Three - 16 Teams
March 30-31: Round Four - 8 Teams
Championship Weekend
April 6: Round Five - Semi-Finals - 4 Teams
April 8: Round Six - Championship - 2 Teams
NCAA Division I Men's Tournament Dates (2019).
Retrieved from https://www.ncaa.com/march-madness/schedule