The implementation of new minister of religion of Brunei, Indonesia, Malaysia, and Singapore criteria towards the Hijri calendar unification

This study aims to integrate hadith , astronomy and sociology studies in examining the implementation of Hijri calendar unification through a multidisciplinary approach. The is based on astronomical phenomena earth-moon-sun system should refer provisions Islamic law or fiqh be implemented worship. For preparation good calendar, agreement criteria, date line, authority necessary. Furthermore, criteria requires valid argument studies. An implementing region boundaries necessary due round earth hilal [crescent moon] cannot observed simultaneously anywhere. It also needed resolve unavoidable differences, specifically appearance schools law. problems solved are as follows: What strategy for unification? review literature, analysis data related experiences Indonesia countries regarding unification. results show that three approaches above can carried out accelerated. Contribution: contributes showing approach problem new Ministers Religious Affairs Brunei Darussalam, Indonesia, Malaysia, Singapore (MABIMS) towards calendar.