Tag Archives: Math.floor

Converting Between Julian Dates and Gregorian Calendar Dates in Fortran (and JavaScript)

When looking through some of my old papers I found at my father’s house after he died, I found some old Fortran code for converting Gergorian calendar dates to and from Julian dates. I haven’t used Fortran since the 1970s, so the code looked a little strange. Some examples of Julian dates: Julian Date Equivalent… Read More »