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...rs is on CRAN, in response to requests earlier this week. It performs conversions between the Gregorian calendar and other calendars including the Persian (Jalali) calendar used in Iran and Afghanistan and the Hebrew calendar used in Israel. All the heavy lifting is done by C code from http://www.projectpluto.com. -thomas Thomas Lumley Assoc. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...rs is on CRAN, in response to requests earlier this week. It performs conversions between the Gregorian calendar and other calendars including the Persian (Jalali) calendar used in Iran and Afghanistan and the Hebrew calendar used in Israel. All the heavy lifting is done by C code from http://www.projectpluto.com. -thomas Thomas Lumley Assoc. Professor, Biostatistics tlumley at u.washington.edu University of Washington, Seattle _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...ld attempt it but the algorithm is very complex and this is also way beyond my fairly rudimentary knowledge of R. There is an informative article about how this can be done in C by Homam Hosseini here: http://www.codeproject.com/KB/cs/JalaliCalendar.aspx and a different attempt here: http://www.projectpluto.com/calendar.htm#jalali ... and several other examples (mostly in C I think) can be found by googling Persian Jalali calendar. Aside from being written in C, the other problem with all the code snippets I found is that they are only for converting single dates - whereas I would like to convert an...