Let us not try to fit prayer into our day. Rather, let us fit our day around prayer. Let us give priority to prayer, and our day will be different when it begins with prayer. And gradually we will learn that the Holy Spirit prays through us...." with groans that words cannot express."
Anytime is suitable for prayer but the Church proposes to the faithful "special times" for praying which are intended to nourish continual prayer. They are morning and evening prayer, prayer before and after meals. The Divine Office,Sundays centered on the Eucharist, and feast of the Liturgical year.[See CCC 2698]