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Back to Astronomical calculations
Astronomical phenomena
Calendars 2000 to 2030
Calendar 2020
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Understanding > Astronomical calculations > Calendars I

DETERMINATION OF CALENDARS



The next pages allow you to know the calendar in use at the present time and to see the correspondance between our gregorian calendar and the other calendars. A complete explanation of the chronology, era and calendars is available here.
Explanations on seasons (how are they defined and are they determined) are available here. 


 
      • gregorian calendars: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030.
      • correspondance between calendars
      • French republican calendar
      • determination of the day of the week
      • calculation of the Julian Day
      • determination of legal feasts
      • determination of the date of Easter - comput
      • religious feasts
      • beginning of the seasons
      • legal time in France

Sunrises and sunsets are available in the pages "ephemerides" or in the pages "phenomena". 



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