Islamizing Time in Seventeenth-Century Java: Calendrical Reform, Contested Histories, and the Negotiation of Authority

Fairuz Sabiq (UIN Raden Mas Said Surakarta)
Mahira Arrosyida (UIN Raden Mas Said Surakarta)

Journal of Islamic History
Vol. 6 No. 1 Special Issue (2026): Islamic Legal History

This article investigates the Islamization of time in seventeenth-century Java by reading the calendar reform. This article examines the historical relationship between calendrical knowledge, religious legitimacy, and royal authority. The study employs a critical literature-based historical approach, comparing published analyses of the reform, studies of the Serat Widya Pradhana, and scholarship on Islamic Mataram. It argues that the calendar's combination of a lunar reckoning, inherited year numbering, and Javanese temporal cycles can be interpreted as a negotiated arrangement rather than a total cultural replacement. Attributing calendrical authorship to Sultan Agung and, later, to Sunan Giri II in a literary genealogy indicates competing modes of authorizing Islamic time. These accounts should not be conflated with contemporary evidence for the reform. The article proposes calendrical authority as a limited analytical framework linking knowledge, institutions, and social practice, while acknowledging that the absence of independently examined seventeenth-century manuscripts prevents claims about a uniform implementation throughout Java. REFERENCES Adam, B. (1990). Time and social theory. Polity Press. Adhellia, S. D. F. (2025). Utilization of the Javanese Islamic calendar system for determining auspicious days: A case study of wedding traditions in Jombang, East Java. Al-Hisab: Journal of Islamic Astronomy. https://jurnal.umsu.ac.id/index.php/alhisab/article/view/21792 Aveni, A. F. (2002). Empires of time: Calendars, clocks, and cultures (Rev. ed.). University Press of Colorado. Fikrah, A. Z. (2024). Implementasi kalender Jawa Islam di Keraton Kasunanan Surakarta Hadiningrat [Tesis magister, Universitas Islam Negeri Walisongo Semarang]. https://eprints.walisongo.ac.id/id/eprint/29616/ Florida, N. K. (1995). Writing the past, inscribing the future: History as prophecy in colonial Java. Duke University Press. https://doi.org/10.1215/9780822378662 Mahmudah, Y. N., & Izzuddin, A. (2023). Kalender Jawa Islam menurut Ronggowasito dalam Serat Widya Pradhana. Al-Afaq: Jurnal Ilmu Falak dan Astronomi, 5(1). https://doi.org/10.20414/afaq.v5i1.6937 Musonnif, A. (2016). Politik hukum dalam perumusan kalender Islam (Studi tentang kebijakan kalender Nabi Muhammad SAW di Jazirah Arab dan kalender Sultan Agung di tanah Jawa). Ahkam: Jurnal Hukum Islam, 4(1), 1–22. https://doi.org/10.21274/ahkam.2016.4.1.1-22 Musonnif, A. (2017). Genealogi kalender Islam Jawa menurut Ronggo Warsito: Sebuah komentar atas sejarah kalender dalam Serat Widya Pradhana. Kontemplasi: Jurnal Ilmu-Ilmu Ushuluddin, 5(2), 329–355. https://doi.org/10.21274/kontem.2017.5.2.329-355 Pigeaud, T. G. T. (1967). Literature of Java: Catalogue raisonné of Javanese manuscripts in the library of the University of Leiden and other public collections in the Netherlands (Vol. 1). Martinus Nijhoff. Pigeaud, T. G. T., & de Graaf, H. J. (1976). Islamic states in Java 1500–1700: Eight Dutch books and articles by Dr. H. J. de Graaf. Martinus Nijhoff. https://doi.org/10.1007/978-94-015-7187-6 Ramadhan, R., Izzuddin, A., & Mahsun. (2023). Aboge sebagai siklus awal tahun menyalahi sunnatullah. Al-Afaq: Jurnal Ilmu Falak dan Astronomi, 5(1). https://doi.org/10.20414/afaq.v5i1.7003 Ricklefs, M. C. (1998). Islamising Java: The long shadow of Sultan Agung. Archipel, 56(1), 469–482. https://doi.org/10.3406/arch.1998.3503 Ricklefs, M. C. (2006). Mystic synthesis in Java: A history of Islamization from the fourteenth to the early nineteenth centuries. EastBridge. Ricklefs, M. C. (2008). A history of modern Indonesia since c. 1200 (4th ed.). Stanford University Press. Ricklefs, M. C. (2014). Rediscovering Islam in Javanese history. Studia Islamika, 21(3), 397–418. https://doi.org/10.15408/sdi.v21i3.1216 Sholehuddin, M., & Qulub, S. T. (2022). Analisis kesesuaian kalender Jawa Islam dengan kalender Hijriyah. Al-Afaq: Jurnal Ilmu Falak dan Astronomi, 4(1). https://doi.org/10.20414/afaq.v4i1.4198 Zerubavel, E. (1981). Hidden rhythms: Schedules and calendars in social life. University of Chicago Press.