Satu Suro is the first day of the Javanese calendar year in the month of Sura (also transcribed as "Suro"). It has numerous associations in folk tales and superstitions in Java, Indonesia that vary considerably through regional variation in cultural practices. The prevalent theme through most superstitions is one of the danger of going out from the home - similar to the Balinese day of Nyepi.
The Javanese day starts at the sunset of the previous day, not at midnight - as a consequence considerable emphasis is made in the 'eve' of the first Day of the month of Sura.
