JDMonthName Returns a month name &reftitle.description; stringjdmonthname intjulianday intmode Returns a string containing a month name. mode tells this function which calendar to convert the Julian Day Count to, and what type of month names are to be returned. Mode Meaning Values 0 Gregorian - abbreviated Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec 1 Gregorian January, February, March, April, May, June, July, August, September, October, November, December 2 Julian - abbreviated Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec 3 Julian January, February, March, April, May, June, July, August, September, October, November, December 4 Jewish Tishri, Heshvan, Kislev, Tevet, Shevat, AdarI, AdarII, Nisan, Iyyar, Sivan, Tammuz, Av, Elul 5 French Republican Vendemiaire, Brumaire, Frimaire, Nivose, Pluviose, Ventose, Germinal, Floreal, Prairial, Messidor, Thermidor, Fructidor, Extra &reftitle.parameters; jday The Julian Day to operate on calendar The calendar to take the month name from &reftitle.returnvalues; The month name for the given Julian Day and calendar.