Let's try this so I don't bork it up:

          May                   June
  Su Mo Tu We Th Fr Sa  Su Mo Tu We Th Fr Sa
               1  2  3   1  2  3  4  5  6  7
   4  5  6  7  8  9 10   8  9 10 11 12 13 14
  11 12 13 14 15 16 17  15 16 17 18 19 20 21
  18 19 20 21 22 23 24  22 23 24 25 26 27 28
  25 26 27 28 29 30 31  29 30

Schedule

May 18	First Event
May 19	Second Event
May 20 - May 22	Third event takes more time

1:2:3:4:5:6:7:8:9

Another test!