Tag Archives: calendar

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 »

Thanksgiving and Hanukkah Converge in 2013

On Thursday, November 28, 2013, the American holiday of Thanksgiving and the Jewish holiday of Hanukkah will converge (overlap). Hanukkah will begin at sundown on Wednesday, November 27 and at sundown on Thanksgiving day, the second day of Hanukkah will begin. The convergence happens because the Hebrew calendar reflects both the solar year and the… Read More »