Fumocies on Epoch of 1999-12-21 Big Full Moon Is use a 14 fumocy cycle where 3 fumocies are short. This is accurate to one day from seven centuries. The number of days in the 14 fumocies of the cycle are 411:412:412:412:412: 411:412:412:412:412: 411:412:412:412. Using this with 1999-12-21 as an epoch and the help of Hermetic Systems Easy Date Converter http://www.hermetic.ch/cal_sw/calconv/calconv.htm I get: 1999-12-22 CE plus 411 days = 2001-02-05 CE, Monday 2001-02-05 CE plus 412 days = 2002-03-24 CE, Sunday 2002-03-24 CE plus 412 days = 2003-05-10 CE, Saturday 2003-05-10 CE plus 412 days = 2004-06-25 CE, Friday 2004-06-25 CE plus 412 days = 2005-08-11 CE, Thursday 2005-08-11 CE plus 411 days = 2006-09-26 CE, Tuesday 2006-09-26 CE plus 412 days = 2007-11-12 CE, Monday 2007-11-12 CE plus 412 days = 2008-12-28 CE, Sunday 2008-12-28 CE plus 412 days = 2010-02-13 CE, Saturday 2010-02-13 CE plus 412 days = 2011-04-01 CE, Friday 2011-04-01 CE plus 411 days = 2012-05-16 CE, Wednesday 2012-05-16 CE plus 412 days = 2013-07-02 CE, Tuesday 2013-07-02 CE plus 412 days = 2014-08-18 CE, Monday 2014-08-18 CE plus 412 days = 2015-10-04 CE, Sunday 2015-10-04 CE plus 411 days = 2016-11-18 CE, Friday 2016-11-18 CE plus 412 days = 2018-01-04 CE, Thursday 2018-01-04 CE plus 412 days = 2019-02-20 CE, Wednesday 2019-02-20 CE plus 412 days = 2020-04-07 CE, Tuesday 2020-04-07 CE plus 412 days = 2021-05-24 CE, Monday 2021-05-24 CE plus 411 days = 2022-07-09 CE, Saturday 2022-07-09 CE plus 412 days = 2023-08-25 CE, Friday 2023-08-25 CE plus 412 days = 2024-10-10 CE, Thursday 2024-10-10 CE plus 412 days = 2025-11-26 CE, Wednesday 2025-11-26 CE plus 412 days = 2027-01-12 CE, Tuesday 2027-01-12 CE plus 411 days = 2028-02-27 CE, Sunday 2028-02-27 CE plus 412 days = 2029-04-14 CE, Saturday 2029-04-14 CE plus 412 days = 2030-05-31 CE, Friday 2030-05-31 CE plus 412 days = 2031-07-17 CE, Thursday Working backwards I get: 1999-12-21 CE minus 412 days = 1998-11-04 CE, Wednesday 1998-11-04 CE minus 412 days = 1997-09-18 CE, Thursday 1997-09-18 CE minus 412 days = 1996-08-02 CE, Friday 1996-08-02 CE minus 411 days = 1995-06-18 CE, Sunday 1995-06-18 CE minus 412 days = 1994-05-02 CE, Monday 1994-05-02 CE minus 412 days = 1993-03-16 CE, Tuesday 1993-03-16 CE minus 412 days = 1992-01-29 CE, Wednesday 1992-01-29 CE minus 412 days = 1990-12-13 CE, Thursday 1990-12-13 CE minus 411 days = 1989-10-28 CE, Saturday 1989-10-28 CE minus 412 days = 1988-09-11 CE, Sunday 1988-09-11 CE minus 412 days = 1987-07-27 CE, Monday 1987-07-27 CE minus 412 days = 1986-06-10 CE, Tuesday 1986-06-10 CE minus 412 days = 1985-04-24 CE, Wednesday 1985-04-24 CE minus 411 days = 1984-03-09 CE, Friday 1984-03-09 CE minus 412 days = 1983-01-22 CE, Saturday 1983-01-22 CE minus 412 days = 1981-12-06 CE, Sunday 1981-12-06 CE minus 412 days = 1980-10-20 CE, Monday 1980-10-20 CE minus 411 days = 1979-09-05 CE, Wednesday 1979-09-05 CE minus 412 days = 1978-07-20 CE, Thursday 1978-07-20 CE minus 412 days = 1977-06-03 CE, Friday 1977-06-03 CE minus 412 days = 1976-04-17 CE, Saturday 1976-04-17 CE minus 412 days = 1975-03-02 CE, Sunday 1975-03-02 CE minus 411 days = 1974-01-15 CE, Tuesday 1974-01-15 CE minus 412 days = 1972-11-29 CE, Wednesday 1972-11-29 CE minus 412 days = 1971-10-14 CE, Thursday 1971-10-14 CE minus 412 days = 1970-08-28 CE, Friday 1970-08-28 CE minus 412 days = 1969-07-12 CE, Saturday 1969-07-12 CE minus 411 days = 1968-05-27 CE, Monday 1968-05-27 CE minus 412 days = 1967-04-11 CE, Tuesday 1967-04-11 CE minus 412 days = 1966-02-23 CE, Wednesday 1966-02-23 CE minus 412 days = 1965-01-07 CE, Thursday 1965-01-07 CE minus 411 days = 1963-11-23 CE, Saturday 1963-11-23 CE minus 412 days = 1962-10-07 CE, Sunday 1962-10-07 CE minus 412 days = 1961-08-21 CE, Monday 1961-08-21 CE minus 412 days = 1960-07-05 CE, Tuesday 1960-07-05 CE minus 412 days = 1959-05-20 CE, Wednesday 1959-05-20 CE minus 411 days = 1958-04-04 CE, Friday 1958-04-04 CE minus 412 days = 1957-02-16 CE, Saturday 1957-02-16 CE minus 412 days = 1956-01-01 CE, Sunday 1956-01-01 CE minus 412 days = 1954-11-15 CE, Monday 1954-11-15 CE minus 412 days = 1953-09-29 CE, Tuesday 1953-09-29 CE minus 411 days = 1952-08-14 CE, Thursday 1952-08-14 CE minus 412 days = 1951-06-29 CE, Friday 1951-06-29 CE minus 412 days = 1950-05-13 CE, Saturday 1950-05-13 CE minus 412 days = 1949-03-27 CE, Sunday 1949-03-27 CE minus 411 days = 1948-02-10 CE, Tuesday 1948-02-10 CE minus 412 days = 1946-12-25 CE, Wednesday 1946-12-25 CE minus 412 days = 1945-11-08 CE, Thursday 1945-11-08 CE minus 412 days = 1944-09-22 CE, Friday 1944-09-22 CE minus 412 days = 1943-08-07 CE, Saturday 1943-08-07 CE minus 411 days = 1942-06-22 CE, Monday 1942-06-22 CE minus 412 days = 1941-05-06 CE, Tuesday 1941-05-06 CE minus 412 days = 1940-03-20 CE, Wednesday 1940-03-20 CE minus 412 days = 1939-02-02 CE, Thursday 1939-02-02 CE minus 412 days = 1937-12-17 CE, Friday 1937-12-17 CE minus 411 days = 1936-11-01 CE, Sunday 1936-11-01 CE minus 412 days = 1935-09-16 CE, Monday 1935-09-16 CE minus 412 days = 1934-07-31 CE, Tuesday 1934-07-31 CE minus 412 days = 1933-06-14 CE, Wednesday 1933-06-14 CE minus 411 days = 1932-04-29 CE, Friday 1932-04-29 CE minus 412 days = 1931-03-14 CE, Saturday 1931-03-14 CE minus 412 days = 1930-01-26 CE, Sunday 1930-01-26 CE minus 412 days = 1928-12-10 CE, Monday 1928-12-10 CE minus 412 days = 1927-10-25 CE, Tuesday 1927-10-25 CE minus 411 days = 1926-09-09 CE, Thursday 1926-09-09 CE minus 412 days = 1925-07-24 CE, Friday 1925-07-24 CE minus 412 days = 1924-06-07 CE, Saturday 1924-06-07 CE minus 412 days = 1923-04-22 CE, Sunday 1923-04-22 CE minus 412 days = 1922-03-06 CE, Monday 1922-03-06 CE minus 411 days = 1921-01-19 CE, Wednesday 1921-01-19 CE minus 412 days = 1919-12-04 CE, Thursday 1919-12-04 CE minus 412 days = 1918-10-18 CE, Friday 1918-10-18 CE minus 412 days = 1917-09-01 CE, Saturday 1917-09-01 CE minus 411 days = 1916-07-17 CE, Monday 1916-07-17 CE minus 412 days = 1915-06-01 CE, Tuesday 1915-06-01 CE minus 412 days = 1914-04-15 CE, Wednesday 1914-04-15 CE minus 412 days = 1913-02-27 CE, Thursday 1913-02-27 CE minus 412 days = 1912-01-12 CE, Friday 1912-01-12 CE minus 411 days = 1910-11-27 CE, Sunday 1910-11-27 CE minus 412 days = 1909-10-11 CE, Monday 1909-10-11 CE minus 412 days = 1908-08-25 CE, Tuesday 1908-08-25 CE minus 412 days = 1907-07-10 CE, Wednesday 1907-07-10 CE minus 412 days = 1906-05-24 CE, Thursday 1906-05-24 CE minus 411 days = 1905-04-08 CE, Saturday 1905-04-08 CE minus 412 days = 1904-02-21 CE, Sunday 1904-02-21 CE minus 412 days = 1903-01-05 CE, Monday 1903-01-05 CE minus 412 days = 1901-11-19 CE, Tuesday 1901-11-19 CE minus 411 days = 1900-10-04 CE, Thursday 1900-10-04 CE minus 412 days = 1899-08-18 CE, Friday 1899-08-18 CE minus 412 days = 1898-07-02 CE, Saturday 1898-07-02 CE minus 412 days = 1897-05-16 CE, Sunday 1897-05-16 CE minus 412 days = 1896-03-30 CE, Monday 1896-03-30 CE minus 411 days = 1895-02-13 CE, Wednesday 1895-02-13 CE minus 412 days = 1893-12-28 CE, Thursday 1893-12-28 CE minus 412 days = 1892-11-11 CE, Friday 1892-11-11 CE minus 412 days = 1891-09-26 CE, Saturday 1891-09-26 CE minus 412 days = 1890-08-10 CE, Sunday 1890-08-10 CE minus 411 days = 1889-06-25 CE, Tuesday