The most important gongyo service in Nichiren Shoshu is the Ushitora Gongyo performed daily by the high priest or his proxy (when he is unable to officiate). Ushitora Gongyo takes place in the Grand Reception Hall of Head Temple Taisekiji and follows the format of the five-prayer morning gongyo service. It is done between the eponymous hours of the ox ("ushi", 02:00) and the tiger ("tora", 04:00), usually starting at 02:30 and taking about 50 minutes. Its purpose is to pray for the worldwide propagation of Nichiren Shōshū Buddhism and—by extension—the peace and prosperity of all the world's peoples.