The Feast of the Baptism of the Lord marked the return, in the liturgical calendar, of that period known as Ordinary Time.
Apart from those seasons having their own distinctive character, thirty-three or thirty-four weeks remain in the yearly cycle that do not celebrate a specific aspect of the mystery of Christ. Rather, especially on the Sundays, they are devoted to the mystery of Christ in all its aspects. This period is known as Ordinary Time. http://www.liturgyoffice.org.uk/Calendar/index.shtml