National Day of Prayer calls on all people of different faiths in the United States to pray for the nation and its leaders. It is held on the first Thursday of May each year.

Ascension Day is observed in the United States on the 40th day of Easter. It commemorates Jesus Christ's ascension into heaven.

Pentecost is a Christian holy day commemorating the descent of the Holy Ghost upon the disciples of Jesus Christ, according to the New Testament of the Bible. It is also known as Whitsunday, or Whit Sunday.

Trinity Sunday is the first Sunday after Pentecost and is celebrated by many Christians in the United States. It is one of the few feasts that are celebrated as a doctrine instead of an event. It is also symbolic of the unity of the Trinity.