World Dual Petin-Meton Calendar Date Conversion Software

Developer's DescriptionBy Hermetic SystemsConvert dates in the Lunar Petin-Meton Calendar and the Solar Petin-Gregorian Calendar.The World Dual Petin-Meton Calendar consists of two calendars: The Lunar Petin-Meton Calendar and the Solar Petin-Gregorian Calendar.The Lunar Petin-Meton Calendar, which was invented in 2001-2002 by Mikhail Petin, is based on the Metonic cycle. Months are of two kinds, 29-day months and 30-day months. Longer cycles are defined in terms of these two kinds of months, namely, Meton cycles, Base cycles, Hipparchus cycles, Petin cycles, Palmen cycles and finally Grand Meton cycles.Dates in The Solar Petin-Gregorian Calendar are the same as dates in the Gregorian Calendar. The difference is that whereas the Gregorian Calendar runs parallel to a 7-day week, the Solar Petin-Gregorian Calendar runs parallel to a system of weeks which are either 7-day or 8-day weeks.