Seventh-day churches, like Seventh Day Adventists, Seventh Day Baptists, and the Church of God (7th Day), have services on Saturday. As of 2015, a growing number of Evangelical churches hold services on Saturday evenings, and Roman Catholic churches hold mass on Saturdays.
Seventh-day churches have services on Saturday because that is when the Bible says the Sabbath is. These groups think that people still have to follow the 10 Commandments, including keeping the Sabbath holy. Most other Christian groups, on the other hand, choose to worship on Sunday to remember that Christ rose from the dead.
Pope Pious II gave permission for local priests to hold mass on Saturday nights. In 1983, when the Code of Canon Law was passed, everyone had to do it. Following the tradition that a day starts at sunset, the readings and prayers at mass on Saturday night and Sunday morning are the same.
Many people have busy lives, so Saturday evening services have become more popular in Evangelical churches. Saddleback Community Church has two services on Saturday evening. Both of them have the same activities for kids and teens as the Sunday morning services.
Most Seventh Day churches have services on Saturday, and so does the First Seventh Day Adventist Church in Huntsville, Alabama. But it also has services on Sunday morning. The pastor of the church says that the Sunday morning service is a good place to meet people who can’t go to church on Saturday.