Talk:Shire Reckoning/@comment-26322120-20150725034824/@comment-27102853-20151029194629

Durin's Day  was a yearly event noted by the D warves, "when the last moon of Autumn and the sun are in the sky together" (i.e., until sunset) on first day of the dwarves' New Year, which was "the first day of the last moon of Autumn on the threshold of Winter." Since each lunar cycle takes about 29.5 days and autumn (by the American definiton of winter) in the northern hemisphere runs until about December 21st, the first day of the last new moon of autumn could take place any time between about November 22 and December 21. However in The History of The Hobbit, Tolkien set 19 October as the Durin's Day. That would place the beginning of winter for the Dwarves of Erebor at the beginning of November.