None.
The dates are referring to holydays in the Discordian Calendar.
When ordered from left to right you get:
50DI Discord Queen! (6) - DISCORD 50 - DISCO(F)LUX - MAY **3**
50AF I will dance on rooftops (5) - THE AFTERMATH 50 - AFFL(U)X - DEC **8**
5CH laugh and rip-off ideas (3) - CHAOS 5 - MU(N)GDAY - JAN **5**
5DI - YELL LINGANANDA (5) DISCORD 5 - MOJO(D)AY - MAR **19**
50CH drink fermented pineapple (3) - CHAOS 50 - CH(A)OFLUX - FEB **19**
Using the number in the square on the names of the Holydays, you get FUNDA, which is the link. When using the dates with a1z26, you get CHESS, which is the password.