On Sun, Aug 12, 2012 at 2:05 PM, Jürgen Hestermann <juergen.hestermann at gmx.de> wrote: > I am not able to use this function: > http://www.freepascal.org/docs-html/rtl/dos/weekday.html > nor can I find it in the sources. > Does it still exist? > If yes, how to use it? Which unit? DOS does not work. You will find what you need at unit dateutils.