libhdate, hcal and hdate

libhdate is a C library for Hebrew calendar information, including dates, holidays, and times of day. The package includes: hcal and hdate, command line programs for the Hebrew calendar, dates and times of day information. Also included are library bindings to other programming languages (C++, pascal, python, perl, ruby, php). The api is also of general use for calculating solar times anywhere on Earth for any astronomical date (julian day number).