Because the term ordinary in English most often means something that’s not special or distinctive, many people think that Ordinary Time refers to parts of the calendar of the Catholic Church that are unimportant. Even though the season of Ordinary Time makes up most of the liturgical year in the Catholic Church, the fact that Ordinary Time refers to those periods that fall outside of the major liturgical seasons reinforces this impression. Yet Ordinary Time is far from unimportant or uninteresting.
“Going therefore, teach ye all nations, baptising them in the Name of the Father, and of the Son, and of the Holy Ghost teaching them to observe all things, whatsoever I have commanded you,” St. Matt, xxviii. 19.