Celebrated the Sunday after Pentecost Sunday.

This season follows Pentecost Sunday till Advent begins the 4th Sunday before Christmas.

50 days after the Day of the Resurrection/Easter Sunday

40 days after the Day of the Resurrection.  Always on a Thursday then 10 days to Pentecost Sunday.

December 25 to January 5

This week is set by the moon calendar beginning with Passion/Palm Sunday followed by Maundy Thursday, Good Friday, Holy Saturday and the Resurrection of the Lord/Easter Sunday

The season of Lent is observed by some Christian churches beginning with Ash Wednesday six weeks before Holy Week.

Advent season begins with the 4th Sunday before Christmas.