Here are spreadsheet formula to change a Julian Day Number to Gregorian Year, Month, Day of Month and day of Week. One input cell (the Julian Day Number) and 4 output cells are needed 1)Year, 2)Month#, 3)Day of Month, 4)Day of Week. This method is valid for...
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Here are spreadsheet formula to change a Julian Day Number to Gregorian Year, Month, Day of Month and day of Week. One input cell (the Julian Day Number) and 4 output cells are needed 1)Year, 2)Month#, 3)Day of Month, 4)Day of Week. This method is valid for any leap or non-leap year. The Julian Day calendar has a single Julian day number assigned to each day starting with day 0 at noon on Monday November 24, 4714 BC, in the proleptic Gregorian calendar. The conversion routine takes account of leap days so as to give and accurate day count between any two Julian day numbers and the corresponding Gregorian dates.
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