II.2 The Observances Act of 7531 (VI ACG 3)
Article One. Observances. The following Festive Occasions shall be observed with all due traditional solemnity and celebration throughout these Realms:
Yestare, New Year's Day, commemorating the fall of Sauron the Great;
The Sixth of Lothron, commemorating the Crowning of Elessar I Telcontar;
The Thirtieth of Norui, commemorating King Elessar's discovery of the White Tree;
The Seventh of Cerveth, commemorating the Marriage of King Elessar I and Queen Arwen Undomiel;
The Thirtieth of Ivanneth, Cormare, commemorating the Birthdays of Bilbo and Frodo Baggins of the Shire;
Ende I, Loende, and Ende II, the Midyear Festival;
The Eighth of Gwaeron, commemorating the birth of King Elessar I Telcontar;
Mettare, the Year's End.
[For the full calendar as a spreadsheet, see here.]