TermineX-UB
TermineX uses the Gauss-algorithm for the Easter calculation.
TermineX uses the Gauss-algorithm for the Easter calculation (valid for all years after 1582). It is able to calculate all essential German, Bavarian, Austrian and Luxembourg holidays and also some French holidays.
"File / Calendar..." will show the actual year's calendar. Sundays and holidays are displayed in red. Actual day will will be highligthed in blue. Help tags will be displayed when the cursor will be placed on a holiday date, showing the name of the holiday (MacOS-X only). You can change the calendar's year via the disclosure triangle in the window’s upper right corner: an edit field will appear where you can enter the year (or use the up/down arrows (down to 1582 and up to eternity)).