Jesus holds seven stars (Revelation 1:16). Farrer says there can be no doubt what these stars are: They are the seven planets of the ancient solar system, which lent their names to the days of the week (Revelation of St. John Divine, 68).
He elaborate: “Christ embraces [the days] in the span of his hand, because Sunday is his. Christ rose on the octave-day of Holy Week; he spans the week from Sunday to Sunday. And since the pattern of the week is printed on all created time, and history itself is a week of ages . . . , the Christ of Sunday is the First and the Last, the beginning and the end of God’s creation.”
It’s no accident that John’s visions take place on the “Lord’s day,” on Sunday, the day of Jesus by which He claims every day, and by which He is master of the week.