Why Is There No First Sunday in Ordinary Time?
Ordinary Time begins on the Monday after the first Sunday after January 6 (the Feast of the Epiphany). In most years, that Sunday is the Feast of the Baptism of the Lord (see Baptism of the Lord). In countries such as the United States, however, where the celebration of Epiphany is transferred to Sunday, if that Sunday is January 7 or 8, Epiphany is celebrated instead. As feasts of our Lord, both the Baptism of the Lord and Epiphany would displace a Sunday in Ordinary Time. Thus the first Sunday in the period of Ordinary Time is the Sunday that falls after the first week of Ordinary Time, which makes it the Second Sunday of Ordinary Time.