What does “ordinary time” mean?
“Ordinary Time is a season of the Christian (especially the Catholic) liturgical calendar. The name corresponds to the Latin term Tempus per annum (literally “time through the year”). Ordinary Time comprises the two periods — one following Epiphany, the other following Pentecost — which do not fall under the “strong seasons” of Advent, Christmas, Lent, or Easter. The term Ordinary does not mean common or plain, but is derived from the term ordinal or “numbered.” The weeks in ordinary time are numbered, although several Sundays are named for the feast they commemorate, such as Trinity Sunday (first Sunday after Pentecost) and the Feast of Christ the King (last Sunday in OT), and for American Catholics, the Feast of Corpus Christi (second Sunday after Pentecost).” Source and further information: http://en.wikipedia.