Note that, because the date of Easter changes each year, Epiphanytide or “The Season after Epiphany” can last anywhere from 40 to 63 days. So, some years, the last few Sundays of Epiphany don't take place.
How long is Epiphany in the Catholic Church?
Date of the celebration
Until 1955, when Pope Pius XII abolished all but three liturgical octaves, the Latin Church celebrated Epiphany as an eight-day feast, known as the Octave of Epiphany, beginning on January 6 and ending on January 13.
Is Epiphany only one day?
While the Catholic church observes Epiphany as just a single day, for many Protestant churches, Epiphany lasts from January 6 until Ash Wednesday in February and the start of Lent. The six Sundays which follow the Epiphany are known by Christians as the time of manifestation.