Villagers clean up the outside of the Poutasi Village church, Western Samoa on White Sunday. White Sunday (also called Children's Day) is celebrated on the second Sunday of October each year. In this tradition brought to the island by the London Missionary Society, the children receive new clothes and gifts, and festive games are played. Most attend church services and then gather for family feasts that feature foods like pork, taro, and coconuts. Western Samoa. Material World Project.