Ordinary Time is the church's longest season, when worship follows a regular weekly cycle of Scripture readings instead of the special readings of Advent, Christmas, Lent, or Easter. It runs twice a year in Roman Catholic and Anglican calendars: from after the Baptism of the Lord to Ash Wednesday, and from after Pentecost to the start of Advent.
Where does the name come from?
"Ordinary" is a technical word meaning regular or standard, not less important. It refers to the ordinary of the Mass, the prayers that stay the same each week, unlike the proper of the season, which changes. The two stretches now called Ordinary Time were once counted separately as the Time after Epiphany and the Time after Pentecost. The Roman Missal revised in 1969 joined them under one name.
Green, the color of hope and life, marks the season. It appears in altar linens, paraments, and priestly vestments, as explained in liturgical colors.
When does Ordinary Time begin and end?
In the Roman Catholic calendar, Ordinary Time starts on the Monday after the Baptism of the Lord in January and runs until the Tuesday before Ash Wednesday, when Lent begins. It begins again on the Monday after Pentecost Sunday and continues to the end of the year, ending with Christ the King Sunday on the Sunday before Advent. Most Sundays in the liturgical calendar fall in Ordinary Time.
What do the readings and services look like?
Sunday worship follows a three-year cycle. In Year A, most Sunday readings come from Matthew; Year B from Mark; Year C from Luke. John appears at certain Sundays, including a run of familiar lines such as "I am the bread of life" and "I am the way, the truth, and the life." Year B also has very short Gospel readings from Mark, sometimes called the "Little Patch" Gospels.
The Mass keeps the same shape it has all year: readings from the lectionary, a psalm, a sermon or homily, the prayers of the people, and the Eucharist. A feast day that falls on a Sunday takes the place of the ordinary readings. Many Catholic parishes hold classes for adults preparing for baptism in this season.
How do other churches observe it?
Anglican and Episcopal churches keep a similar shape, using green for the weeks after Christmas and after Pentecost; some Anglicans call this the Green Season. Lutheran calendars label the same stretches the time after Christmas and the Sundays after Pentecost. Protestant churches that use the Revised Common Lectionary also read the Sunday texts in a three-year cycle, though most do not organize worship around a formal season. Eastern Orthodox churches follow a different calendar, built around Great Lent and the Nativity Fast.
What to expect if you attend
Nothing special happens on an ordinary Sunday, and that is the point. Expect green paraments or vestments, the same order of service, and a congregation doing what it does all year. Announcements about Sunday school, small groups, and community programs often land in this stretch. To see the season firsthand, find a Catholic church near you and visit a weekend Mass.