the night of "1 Suro is the night as a sign of the beginning of the first month in the Javanese calendar. The night of 1 Suro also coincides with 1 Muharram in the hijri calendar or Islamic calendar and the night of one suro has many famous prohibitions it is said that it is forbidden for someone to go out or move house at night, it is said that it will bring disaster to those who violate it . the night of one suro is often called a sacred night