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| | Gregorian Lunar Calendar |
 | | Lunar year 2005 begins on December 13th, 2004 (that is, at sunset on December 12th, 2004), as can be seen by examining the table below at the intersection of the row for year 11 and the column for the first moon. |
 | | If one wishes to use the Gregorian lunar almanac not just as an almanac, but as a calendar, additional rules may be needed, such as the rules enumerated below for February 29th, for the 13th moon of the 19th year of the cycle, and for the 12th moon of the year 2199. |
 | | This allows any year of 12 months to be reduced in length by a day, and any year of 13 months to be reduced in length by as much as two days, and any year, whether of 12 or 13 lunar months, to be increased in length by as much as two days,. |
| home.telepath.com /~hrothgar/lunar_almanac.html (1032 words) |
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