| January 1 | New Year's Day – 1st day of the 2nd year of the 2nd Decade |
| January 5 | Twelfth Night |
| January 6 |
Christmas – Eastern Orthodox Christian Epiphany, Little or Old Christmas, 3 Kings Day |
| February | (See also Cross Quarter list for additional Feb. holidays) |
| February 2-7 | World Interfaith Harmony Week |
| February 5 | Chinese New Year |
| February 14 | Valentine's Day |
| February 22 - March 4 | UN Commission on the Status of Women - 55th CSW |
| March 7 | Clean Monday - Great Lent - Eastern Orthodox Christian |
| March 8 |
International Women’s Day Shrove Tuesday / Fat Tuesday / Mardi Gras / Carnivale – Western Christian |
| March 9 | Ash Wednesday/Lent begins – Western Christian |
| March 20 |
Equinox Purim |
| April 4 | Hindu New Year |
| April 4-12 | Ramayana - Hindu |
| April 11 | Arbor Day - International - US now celebrated with Earth Day |
| April 17 |
Palm Sunday – Western Christian Easter Festival |
| April 19-26 | Passover |
| April 24 | Easter - Western Christian |
| May 8 |
Mother's Day - Women Standing to Save the World |
| May 17 | Wesak Festival (Western) |
| June 8-9 | Shavuot |
| June 12 |
“Countdown to Peace” 100 Day Campaign leading up to IDP Whit Sunday - Pentacost |
| June 15 |
Festival of Humanity – World Good Will Day – Christ Festival – World Invocation |
| June 19 | Father's Day |
| June 21 | Solstice |
| July 25 | World Day of Love and Thanks to Water |
| August 1 | Ramadan begins |
| August 18-21 | Harmonic Convergence Anniversary (1987) |
| September 11 | 11 Days of Global Unity - Vigil to IDP – 9/11 WTC Anniversary |
| September 21 | International Day of Peace (IDP) |
| September 23 | Equinox |
| September 29 |
Rosh Hashanah Feast of Archangel Michael and All the Angels |
| October 8 | Yom Kippur |
| October 24 | United Nations Day |
| October 26 | Diwali |
| October 31 | Halloween (All Hallows Eve) (the Eve of All Saints Day) |
| November 1 | All Saints Day |
| November 2 | All Souls Day |
| November 11 | Armistice Day – now Veterans Day |
| November 25 | Thanksgiving (US) |
| November 26 | Hijra – New Year Islam |
| November 27 | 1st Sunday of Advent |
| November 25 thru December 10 |
16 Days of Activism Against Gender Violence [11/25 – Elimination of Violence Against Women; 12/10 – Human Rights Day] |
| December 21 |
Solstice Hanukkah (December 21-28) |
| December 25 | Christmas - Western Christian |
| December 31 | New Year's Eve |
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