Eastertide or the Season of Easter.
By Deacon Bob with some help from Wikipedia and Welcome to the Church Year.
During the Church year we make a great deal of Advent and Christmas and then the season of Lent, starting with Ash Wednesday leading up to Holy Week beginning with Palm Sunday, then our Maundy Thursday service, Good Friday, and finally the Easter Vigil and Easter Sunday. But what of the Sunday’s between that and Pentecost and then Trinity Sunday. I know for a long time the only thing I remember of those Sunday’s was the Sunday after Easter was informally called “low Sunday” speaking more to attendance than anything theological.
The Season of Easter lasts 59 days, beginning with the Easter Vigil and concluding the Day of Pentecost. I found it interesting that Pentecost Sunday isn’t officially part of Pentecost Season, even though the Sundays in Pentecost are labeled the Sundays after Pentecost. On the other hand, the Sunday’s during Easter Season are called the Sunday’s of Easter.
That “of” rather than “after” may sound like a small thing, but Easter, the oldest celebration of the Christian year, is not a single day but an entire season. The season also includes the feast of the Ascension when the resurrected Jesus ascended to heaven and was seen on earth no longer.
All of the other seasons have grown up around this most ancient feast. The primary theme of Easter is the resurrection: Remembering Jesus overcoming the power of death and the grave with his resurrection, but also celebrating that we too are raised to everlasting life with him in our Baptism.
Alleluia! Christ is risen! The Lord is risen indeed! Alleluia!