libkal-dev 0.9.0-1 (i386 binary) in ubuntu karmic

 The 'libkal' library provides support for converting dates between various
 calendar systems (currently only julianic, gregorianic, arabic and jewish
 ones) and some more related stuff.
 .
 The basic idea of this library is, that any date in any calendar system can be
 converted to a single number, which express the number of days since some
 fixed date in the past. libkal uses the so-called 'julianic date'(jd), that is
 used in Astronomy (not exactly).