Today is the fourth Sunday of Advent and normally the last full week of Advent. However in 2023 this is both the first and last day of Advent as today is Christmas Eve. Advent begins on the Sunday closest to the Feast of St. Andrew (30 November) but this year that day fell on a Thursday, meaning that the first day of Advent fell on Sunday, December 3 making it a three week Advent season.
This does not mean one does not observe it. You should light the Advent candles at dinner after reciting the prayer. And of course read the scripture readings for this day as well, If you are participating in the Christmas Novena, this is the last day of the novena. Then at midnight Advent ends and it becomes Christmas Day!
For 2024, Advent will begin on December 1 as the previous day was the feast of St. Andrew. And unlike 2023, will go the full four weeks with the last Sunday on December 22.
Drop down dew from above, you heavens,
and let the clouds rain down the Just One;
let the earth be opened and bring forth a Saviour.