In order to better understand the patterns in the Metonic sequence, and the placement of Blue Moons and Leap Months it was felt that a diagram would help.
This tool allows you to enter a start year, and generate a diagram for any given number of years beyond that. Keep in mind that the calculations do have a very small margin of error, and that calculating dates many hundreds of years into the future will not be 100% accurate. But this is based on the best available data.[advanced_iframe src=”/metonicapp/index.html” width=”100%” height=”600″]