Liturgical Calculator
You can click on the buttons at the bottom, or click in the text box at the top and type in any date from 1583 to 4099 (then press the Enter key).
The results match my missal for the years 1974 to 1999 - after that please double check with other sources (see the disclaimer on Ronald Mallen’s web page).
From Advent 2006 in England and Wales the Feasts of Epiphany, Ascension and Corpus Christi are celebrated on Sundays. This is not the case in all countries.
If nothing useful appears above, you may not have Java installed on your computer. You can read about Java and download it, if you wish, from the Java web site.