Proceedings of the 4th International Conference on Social Science, Humanity and Public Health, ICoSHIP 2023, 18-19 November 2023, Surabaya, East Java, Indonesia

Research Article

Lunisolar System of Sasak Rowot Calendar Based On the Pleiades Cluster

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  • @INPROCEEDINGS{10.4108/eai.18-11-2023.2342551,
        author={Muhammad  Awaludin and Thomas  Djamaluddin},
        title={Lunisolar System of Sasak Rowot Calendar  Based On the Pleiades Cluster},
        proceedings={Proceedings of the 4th International Conference on Social Science, Humanity and Public Health, ICoSHIP 2023, 18-19 November 2023, Surabaya, East Java, Indonesia},
        publisher={EAI},
        proceedings_a={ICOSHIP},
        year={2024},
        month={1},
        keywords={rowot sasak calendar pleiades lunisolar calendar},
        doi={10.4108/eai.18-11-2023.2342551}
    }
    
  • Muhammad Awaludin
    Thomas Djamaluddin
    Year: 2024
    Lunisolar System of Sasak Rowot Calendar Based On the Pleiades Cluster
    ICOSHIP
    EAI
    DOI: 10.4108/eai.18-11-2023.2342551
Muhammad Awaludin1,*, Thomas Djamaluddin2
  • 1: Pascasarjana UIN Walisongo
  • 2: Research Center for Space, National Research and Innovation Agency (BRIN)
*Contact email: muhammad.awaludin92@gmail.com

Abstract

Sasak Rowot Calendar is a traditional calendar in Lombok. It uses three systems at once, lunar for religious events, solar for social activities, and stars for season determination. This research aims to discuss how the Sasak tribe formulates a lunar-based calendar. It used a qualitative method with a cultural study approach, by interviewing Sasak cultural figures and related literature. The findings show that the Rowot Sasak calendar has 29 and 30 days in a month with an 8-year cycle (widon), and a "5-15-25" pattern namely gandang rowot for seasons determination. The length of the day in each season varies, between 23 and 41 days. Then, the solar calendar system is used for conversion into an international calendar. The Sasak Rowot Calendar was formulated by dividing the functions of celestial bodies used in it. The existence of this calendar makes it easy to prepare all religious and social activities, including season reading and determination.