True, I should have specified that the timing I was providing was the Western tradition; the Orthodox (both Eastern and Oriental, I believe) tradition has a 40-day Nativity Fast (in some, the name is different in others) mirroring the 40-day season of Lent, that is similar (in terms of being a preparatory season for the Feast of the Nativity) to the Western Advent.
True, I should have specified that the timing I was providing was the Western tradition; the Orthodox (both Eastern and Oriental, I believe) tradition has a 40-day Nativity Fast (in some, the name is different in others) mirroring the 40-day season of Lent, that is similar (in terms of being a preparatory season for the Feast of the Nativity) to the Western Advent.