The Easter Season Ends with Pentecost
The Ascension of our Lord takes place 40 days after Easter.
This year, that falls on Thursday, May 25th, but it will be celebrated on Sunday, May 28, 2017.
Pentecost marks the end of the Easter Season, and falls 50 days after Easter.
This year, Pentecost will be on Sunday, June 4th, 2017.