A well put together listing of special days in the Buddhist tradition.
February 28: Tibetan New Year – Losar
February 28: Day of Miracles
February 28 – March 15: Great Prayer Festival – Mönlam
Mönlam Chenmo: The first fifteen days of the First Tibetan month which celebrate the days on which Lord Buddha performed many miracles, with the 15th being the Day of Miracles; the Great Prayer Festival (Mönlam Chenmo) takes place on these days.
May 28 – June 11: Month of Saka Dawa
June 11: Saka Dawa, Full Moon, Lord Buddha’s birth, enlightenment and parinirvana
July 6: His Holiness the Dalai Lama’s Birthday
July 29: Turning the Wheel of Dharma; Lord Buddha gave his first teaching
November 12: Lord Buddha’s acceptance to descend from “Tushita” Heaven
December 15: Lama Tsongkhapa’s birthday and passing day