Trinity Monday, also known as Whit Monday or Pentecost Monday, is a Christian holiday celebrated on the Monday after Pentecost Sunday. It marks the end of the Easter season and the beginning of the new liturgical season of Trinity. While Trinity Monday is the most common name for this holiday, it is also referred to as Pentecost Monday, White Monday, and Holy Spirit Monday. In some countries, it is known as Day of the Holy Spirit, Green Monday, or even Dunking Monday. Regardless of its name, this holiday is an important religious observance for many Christians around the world and is a time for reflection and gratitude.