Ordinary time, or counted time, begins the day after the Feast of the Baptism of the Lord and ends on Ash Wednesday. There are 33 or 34 weekends in Ordinary time; the Sunday readings are semi-continuous and come mainly from the synoptic Gospels. The liturgical color is green unless pre-empted by Solemnity that is of of a different color such as white on the Solemnity of Christ the King.
This week was the 12th Sunday in Ordinary time (Year C); the prayer over the gifts was as follows:
"Lord receive our offering, and may this sacrifice of praise purify us in mind and heart and make us always eager to serve you. We ask this through Christ our Lord. Amen."
Here's the post Communion prayer:
Lord, you give us the body and blood of your Son, to renew your life within us. In your mercy, assure our redemption and bring us to the eternal life we celebrate in this Eucharist. We ask this through Christ our Lord. Amen."