によって書かれた Tom Stankey on 2023-10-21
1. Did you ever need to look-up when Easter Sunday or Passover will be this year? Even though many of the religious holydays occur on the same date of the Hebrew calendar every year you may not know the corresponding date on the Gregorian calendar.
2. HolyDates uses algorithms provided by Jean Meeus in his book, “Astronomical Algorithms” second edition.
3. This is the HolyDates help file that provides additional background information.
4. HolyDates provides a separate screen for converting between the two systems.
5. The origin of the modern calendar system and how HolyDates works are discussed.
6. HolyDates provides a quick answer to these questions.
7. The information and functionality provided by HolyDates is divided onto several screens.
8. The day and date for eleven holy days are shown on the main screen.
9. Julian Day Numbers are used by astronomers to keep track of dates or perform date-related computations.
10. His methods have become a sort-of standard for these sorts of computations.
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