newadvent.org/cathen/06021b.htm
New Advent on Ecclesiastical Feasts
"In the United States, the number of feasts was not everywhere the same; the Council of Baltimore wanted only four feasts, but the decree was not approved by Rome; the third Plenary Council of Baltimore (1884), by a general law, retained six feasts:
Christmas, New Year’s Day,
Ascension,
Assumption,
the Immaculate Conception,
and All Saints.
Sts. Peter and Paul
and Corpus Christi were transferred to the next following Sunday.
In the city of Rome the following feasts are of double precept (i.e. hearing Mass, and rest from work):
Christmas,
New Year’s Day,
Epiphany,
Purification,
St. Joseph,
Annunciation,
Ascension,
St. Philip Neri (26 May),
Corpus Christi,
Nativity of the B.V.M.,
All Saints,
Conception of the B.V.M.,
St. John the Evangelist.
The civil law in Italy acknowledges: Epiphany, Ascension, Sts. Peter and Paul, Assumption, Nativity, Conception, Christmas, and the patronal feasts."