Holy Days of Obligation

[stringbeanduck]

So I’ve looked around quite a bit, but I haven’t found a clear cut answer and I rather trust CAF folks than wikipedia. Which days are Roman Catholics obligated to attend Mass- besides every Sunday?

 

[SuscipeMeDomine]

In the United States the holy days are:

In addition to Sunday, the days to be observed as holy days of obligation in the Latin Rite dioceses of the United States of America, in conformity with canon 1246, are as follows:

January 1, the solemnity of Mary, Mother of God;
Thursday of the Sixth Week of Easter, the solemnity of the Ascension;
August 15, the solemnity of the Assumption of the Blessed Virgin Mary;
November 1, the solemnity of All Saints;
December 8, the solemnity of the Immaculate Conception;
December 25, the solemnity of the Nativity of Our Lord Jesus Christ.

Whenever January 1, the solemnity of Mary, Mother of God, or August 15, the solemnity of the Assumption, or November 1, the solemnity of All Saints, falls on a Saturday or on a Monday, the precept to attend Mass is abrogated. Source]

And note that many dioceses transfer the Ascension to the Seventh Sunday of Easter.