René Laurentin has tried to show that Luke’s infancy narrative follows a precise chronology, according to which from the moment of the annunciation to Zechariah until the presentation of Jesus in the Temple, 490 days elapsed, that is to say seventy weeks of seven days each (cf. Structure et Théologie, pp. 49ff.). Whether Luke consciously adopted this chronology must remain an open question.
A different possible interpretation of the 70 weeks mentioned by the prophet Daniel. Perhaps it has already been fulfilled.
