The Joyful Mysteries are traditionally prayed on Mondays, Saturdays, and, during the season of Advent, on Sundays:

The Sorrowful Mysteries are traditionally prayed on Tuesdays, Fridays, and, during the season of Lent, on Sundays:

The Glorious Mysteries are traditionally prayed on Wednesdays and, outside the seasons of Advent and Lent, on Sundays:

The Five Luminous Mysteries are traditionally prayed on Thursdays: