SHARIA LEGITIMACY AND SCIENCE– RELIGION INTEGRATION IN THE ACCEPTANCE OF THE UNIFIED GLOBAL HIJRI CALENDAR (KHGT) AMONG INDONESIAN MUSLIM YOUTH

Authors

  • Susiknan Azhari Sunan Kalijaga State Islamic University Yogyakarta image/svg+xml
  • Mhd. Ilham Armi Sunan Kalijaga State Islamic University Yogyakarta image/svg+xml
  • Mu'tashim Billah Sunan Kalijaga State Islamic University Yogyakarta image/svg+xml

DOI:

https://doi.org/10.22452/fiqh.vol23no1.2

Keywords:

Islamic Astronomy, Science-Religion Integration, KHGT, Empirical Fiqh, Global Maṭlaʿ

Abstract

Amid the growing urgency to unify the global Islamic calendar, the concept of a Unified Global Hijri Calendar (KHGT) faces complex sociological acceptance challenges, often hindered by a clash between normative texts and modern science. Although the discourse on calendar unification has been ongoing for a long time, there is a scarcity of quantitative research that empirically tests its determining epistemological factors. This study aims to analyze how insights from Islamic astronomy and the science-religion integration paradigm simultaneously shape support for the KHGT among young Muslim communities. Using a quantitative approach with the Partial Least Squares-Structural Equation Modeling (PLS-SEM) method, this study examines the science-religion integration paradigm as a crucial mediator in the relationship between three dimensions of astronomical knowledge (basic knowledge, methodological understanding, and practical application) and the acceptance and support of KHGT. Data were collected through a survey of 191 respondents in Yogyakarta who possessed adequate astronomical literacy. Key findings indicate that the direct influence of astronomical knowledge alone is insufficient to drive significant support. Conversely, the science-religion integration paradigm functions as a full mediator, wherein technical knowledge becomes an effective predictor only after being bridged by an integrative framework. This confirms that technical knowledge alone is inert without an epistemological bridge. The implications of this research are twofold. Theoretically, it validates the integration- interconnection model of socio-religious innovation adoption. Juridically, these findings offer an ‘empirical fiqh’ perspective affirming that the validity of applying ittiḥād al-maṭāli’ (global maṭlaʿ) requires the readiness of a science-religion integration paradigm as a form of taḥqīq al manā (legal context verification). In practice, the KHGT socialization strategy must shift from merely technical explanations of ḥisāb to the construction of a narrative that conveys the synergy between science and the objectives of sharia for the sake of unity among the faithful.

Author Biography

  • Susiknan Azhari, Sunan Kalijaga State Islamic University Yogyakarta

    (Corresponding Author) Email: susiknan@uin-suka.ac.id

References

Abdullah, M. Amin. Islamic Studies Dalam Paradigma Integrasi‑Interkoneksi: Sebuah Antologi. Yogyakarta: SUKA-Press, 2007.

Abdullah, M. Amin. Islamic Studies Di Perguruan Tinggi: Pendekatan Integratif-Interkonektif. Yogyakarta: Pustaka Pelajar, 2006.

Abdullah, M. Amin. Multidisiplin, Interdisiplin, & Transdisiplin: Metode Studi Agama & Studi Islam Di Era Kontemporer. Yogyakarta: IB Pustaka, 2021.

Abdullah, M. Amin. “Religion, Science, and Culture: An Integrated, Interconnected Paradigm of Science.” Al- Jami’ah: Journal of Islamic Studies 52, no. 1 (2015): 175–203. https://doi.org/10.14421/ajis.2014.521.175-203.

al-Nawawī, Abū Zakariyyā Yaḥyā bin Sharaf. al-Majmūʿ Sharḥ al-Muhadhdhab Lil-Shīrāzī. Edited by Muḥammad NajībAl-Muṭīʿī. Vol. 6. Jeddah, Saudi Arabia: Maktabat al-Irshād,1980.

al-Naysābūrī, Muslim bin al-Ḥajjāj. Saḥīḥ Muslim: Wa Huwa al-Musnad al-Ṣaḥīḥ. Edited by Markaz al-Buḥūth wa-Taqniyat al-Maʿlūmāt. Vol. 1. Cairo, Egypt: Dār al-Taʾṣīl, 2014.

al-Zuḥaylī, Wahbah. al-Fiqh al-Islāmī wa-Adillatuhu. Vol. 2. Beirut: Dār al-Fikr, 1985.

Anwar, Syamsul. Studi Hukum Islam Kontemporer Bagian Dua. Yogyakarta: UAD Press, 2019.

Anwar, Syamsul. “Unifikasi Kalender Hijriah Global: Problems Dan Tantangan.” Al‐Marshad: Jurnal Astronomi Islam Dan Ilmu‐Ilmu Berkaitan 2, no. 2 (2016): 147–61.

Aspar, Sumartini, and Muktashim Billah. “Kalender Hijriah Global Tunggal dan Tantangan Penerapannya di Indonesia.” Jurnal Pendidikan Agama Islam 5, no. 1 (2026): 131–37.

Azhari, Susiknan. “Cabaran Kalendar Islam Global Di Era Revolusi Industri 4.0.” Jurnal Fiqh 18, no. 1 (2021): 117–34. https://doi.org/10.22452/fiqh.vol18no1.4.

Azhari, Susiknan. “Diseminasi Kalender Hijriah Global Tunggal.” Media Indonesia, March 5, 2025. https://mediaindonesia.com/opini/749003/diseminasi-kalender-hijriah-global-tunggal.

Azhari, Susiknan. “Kalender Uhadi dan Kalender Tawlifi: Sebuah Pilihan Menuju Penyatuan.” IBTimes, May 5, 2020. https://ibtimes.id/kalender-uhadi-dan-kalender-tawlifi-sebuah-pilihan-menuju-penyatuan/.

Azhari, Susiknan. “Karakteristik Hubungan Muhammadiyah dan NU dalam Menggunakan Hisab dan Rukyat.” Al-Jami’ah: Journal of Islamic Studies 44, no. 2 (2006): 453–86.https://doi.org/10.14421/ajis.2006.442.453-485.

Azzahra, Tiara Aliya. “Ketum PP Muhammadiyah Serukan Hijrah ke Kalender Islam Global Tunggal.” Detikcom, July 2024. https://news.detik.com/berita/d-7431125/ketum-pp-muhammadiyah-serukan-hijrah-ke-kalender-islam-global-tunggal.

Baron, Reuben M., and David A. Kenny. “The Moderator–Mediator Variable Distinction in Social Psychological Research: Conceptual, Strategic, and Statistical Considerations.” Journal of Personality and Social Psychology 51, no. 6 (1986): 1173–82. https://doi.org/10.1037/0022-3514.51.6.1173.

Budiwati, Anisah. “Telaah Awal Kalender Hijriah Global Tunggal Jamaluddin ‘Abd Al-Razik: Sebuah Upaya Menuju Unifikasi Kalender.” Jurnal Bimas Islam 10, no. 3 (2017):407–30. https://doi.org/10.37302/jbi.v10i3.29.

Butar-Butar, Arwin Juli Rakhmadi. Matlak & Kalender IslamGlobal: Tinjauan Mazhab, Literatur, dan Tokoh. Medan: UMSU Press, 2025.

Chin, Wynne W. “The Partial Least Squares Approach to Structural Equation Modeling.” In Modern Methods ForBusiness Reaseacrh, edited by George A. Marcoulides, 295–336. Mahwah, New Jersey, London: Lawrence Erlbaum Associates Publishers, 1998.

Cohen, Louis, Lawrence Manion, and Keith Morrison. Research Methods in Education. 6th ed. London & New York: Routledge, 2007. https://doi.org/10.4324/9780203029053.

Dadash, Mustafa, ed. “Mu’tamar Tawḥīd al-Taqwīm al-Hijrī al- Muwaḥḥad (International Congress on the Unified Hijri Calendar).” Istanbul, Turkey: Diyanet İşleri Başkanlığı,2016.

Dalila, Dalila, Hamrila Latif, Norizan Jaafar, Ikhwan Aziz, and Asyraf Afthanorhan. “The Mediating Effect of Personal Values on the Relationships between Attitudes, Subjective Norms, Perceived Behavioral Control and Intention to Use.” Management Science Letters 10, no. 1 (2020): 153–62. https://doi.org/10.5267/j.msl.2019.8.007.

Faid, Muhamad Syazwan, Mohd Saiful Anwar Mohd Nawawi,Mohd Hafiz Mohd Saadon, Khairussaadah Wahid, and Paidi Norman. “Methods in Determining New Hijri Month: A Thematic Review from Islamic Jurisprudence Perspective.” Malaysian Journal of Syariah and Law 13, no. 1 (2025): 75–99. https://doi.org/10.33102/mjsl.vol13no1.687.

Fian, Khafifatul, Gangsar Edi Laksono, and Muhammad Masruri. “The Concept Integration of Science and Theology M. Amin Abdullah’s Perspective.” Ijtimā Iyya Journal of Muslim Society Research 9, no. 2 (2024): 185–98. https://doi.org/10.24090/ijtimaiyya.v9i2.10228.

Fitriyanti, Vivit, Akhmad Haries, and Abd Syakur. “The Triple Helix Theory as a Solution for the Unification of the Hijri Calendar in Indonesia.” Jurnal Al-Fikrah 13, no. 2 (2024): 202–24. https://doi.org/10.54621/jiaf.v13i2.871.

Fornell, Claes, and David F. Larcker. “Structural Equation Models with Unobservable Variables and Measurement Error: Algebra and Statistics.” Journal of Marketing Research 18,no. 3 (1981): 382–88. https://doi.org/10.1177/002224378101800313.

Hair, Joseph F., and Abdullah Alamer. “Partial Least Squares Structural Equation Modeling (PLS-SEM) in Second Language and Education Research: Guidelines Using an Applied Example.” Research Methods in Applied Linguistics 1, no. 3 (2022): 100027. https://doi.org/10.1016/j.rmal.2022.100027.

Hair, Joseph F., G. Tomas M. Hult, Christian M. Ringle, Marko Sarstedt, Nicholas P. Danks, and Soumya Ray. Partial Least Squares Structural Equation Modeling (PLS-SEM) Using R. Classroom Companion: Business. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-80519-7.

Hair, Joseph F., G Tomas M Hult, Christian M Ringle, and Marko Sarstedt. A Primer on Partial Least Squares Structural Equation Modeling (PLS-SEM). 3rd ed. Los Angeles:SAGE Publications, Inc., 2022.

Hair, Joseph F., Jeffrey Joe Risher, Marko Sarstedt, and Christian M Ringle. “When to Use and How to Report the Results of PLS‐SEM.” European Business Review 31, no. 1 (2019): 2–24. https://doi.org/10.1108/EBR-11-2018-0203.

Hair, Joseph F., Marko Sarstedt, Christian M Ringle, and Siegfried P Gudergan. Advanced Issues in Partial Least Squares Structural Equation Modeling. 2nd ed. Thousand Oaks, CA: SAGE Publications, Inc., 2023.

Hamdun. “Upaya Penyatuan Kalender Islam Internasional oleh Organisasi Kerjasama Islam (OKI).” Jurnal Bimas Islam 10, no. 3 (2017): 473 516.

Hasan, Muhammad. “Ide Perilaku dan Apresiasi Masyarakat Pontianak Terhadap Unifikasi Kalender Hijriah.” Al-Tahrir: Jurnal Pemikiran Islam 15, no. 1 (2015): 179–200. https://doi.org/10.21154/al-tahrir.v15i1.167.

Hashim, Muhammad Ridzuan, Raihana Abdul Wahab, Mohd Saiful Anwar Mohd Nawawi, Nazhatulshima Ahmad, and Muhamad Syazwan Faid. “Unification of Hijri Calendar Under One Maṭla’ : A Case Study of MABIMS Through the Lens of Islamic Jurisprudence and Astronomy.” Jurnal Fiqh 22, no. 2 (2025): 389–433. https://doi.org/10.22452/fiqh.vol22no2.7.

Henseler, Jörg, Geoffrey Hubona, and Pauline Ash Ray. “Using PLS Path Modeling in New Technology Research: Updated Guidelines.” Industrial Management & Data Systems 116, no. 1 (2016): 2–20. https://doi.org/10.1108/IMDS-09-2015-0382.

Henseler, Jörg, Christian M. Ringle, and Marko Sarstedt. “A New Criterion for Assessing Discriminant Validity in Variance-

Based Structural Equation Modeling.” Journal of the Academy of Marketing Science 43, no. 1 (2015): 115–35. https://doi.org/10.1007/s11747014-0403-8.

Herman, Muhammad Akbar, Qadir Gassing, and Muhammad Shuhufi. “Kontroversi Hisab dan Rukyat dalam Penentuan Kalender Islam di Era Modern: Pendekatan Fikih Kontemporer.” Media Hukum Indonesia 2, no. 4 (2024): 617–25. https://doi.org/10.5281/zenodo.14253182.

Hidayat, Muhammad, Abu Yazid Raisal, Marataon Ritonga, and Syahrul Amsari. “Problem and Solutions for Accepting a Single Global Islamic Calender.” Journal of Law & Governance 7, no. 1 (2024): 63–72

Holis, Ahmad Musadad, and Tri Pujiati. “The Role of Public Law in Determining the Islamic Calendar in Indonesia.” Al- Hilal: Journal of Islamic Astronomy 7, no. 1 (2025): 1–18.

Hu, Li‐tze, and Peter M. Bentler. “Cutoff Criteria for Fit Indexes in Covariance Structure Analysis: Conventional Criteria versus New Alternatives.” Structural Equation Modeling: A Multidisciplinary Journal 6, no. 1 (1999): 1–55. https://doi.org/10.1080/10705519909540118.

Ilham. “Muhammadiyah Dorong Kalender Hijriah Global Tunggal Untuk Persatuan Umat Islam.” Muhammadiyah, June 2025. https://muhammadiyah.or.id/2025/06/muhammadiyah-dorong-kalender-hijriah-global-tunggal-untuk-persatuan-umat-islam/.

Ilham. “Prinsip Ittihād Al-Maṭāli’ untuk Kalender Hijriah Sesuai Syariat dan Sains.” Muhammadiyah.or.Id, July 2, 2025. https://muhammadiyah.or.id/2025/07/prinsip-ittihad-al-maṭali-untuk-kalender-hijriah-sesuai-syariat-dan-sains/.

Isa, Nasrul Fadhrullah, Sharifah Nurafizah Syed Annuar, Imelda Albert Gisip, and Nelson Lajuni. “Factors Influencing Online Purchase Intention of Millennials and Gen Z Consumers.” Journal of Applied Structural Equation Modeling 4, no. 2 (2020): 21–43. https://doi.org/10.47263/JASEM.4(2)03.

Jauzaa’, Nisa A.-Zahro, and Rustam Ibrahim. “Scientific Integration of Perspectives M. Amin Abdullah (Integrative- Interconnective Approach).” Al‑Afkar: Journal for Islamic Studies 8, no. 1 (2025): 298–306.

“Keputusan Pimpinan Pusat Muhammadiyah Nomor 86/KEP/I.0/B/2025 tentang Tanfidz Pengembangan Pedoman Hisab Muhammadiyah tentang Kalender Hijriah Global Tunggal.” Pimpinan Pusat Muhammadiyah. Yogyakarta, 2025.

Laabdi, Mourad. “Ilm Al-Ikhtilāf in Modern Western and MuslimStudies of Juristic Disagreement–A Critical Analysis.” Journal of College of Sharia and Islamic Studies 42, no. 2 (2024): 185–210. https://doi.org/10.29117/jcsis.2024.0389.

Lam, Long W. “Impact of Competitiveness on Salespeople’s Commitment and Performance.” Journal of Business Research 65, no. 9 (2012): 1328–34. https://doi.org/10.1016/j.jbusres.2011.10.026.

MABIMS. “Resolusi Muzakarah Falak Peringkat MABIMS Tahun 2025.” Seremban, Negeri Sembilan, Malaysia, 2025.

Majid, Ilham. “Studi Komparasi Konsep Kalender Hijriyah Global Tunggal (KHGT) Muhammadiyah dan Kriteria Neo Mabims di Indonesia: Perspektif Fiqh dan Astronomi.”Jurnal Antologi Hukum 4, no. 2 (2024): 387–402. https://doi.org/10.21154/antologihukum.v4i2.4072.

Marwadi, Rina Heriyanti, and Farah Nuril Izza. “The Fiqh of Hisab-Ru’ya in the Twentieth Century Indonesia: Study on the Thoughts of Hamka, Hasbi Ash-Shiddieqy, and Moenawar Chalil about the Unification of Hijri Calendar.” Al-Manahij: Jurnal Kajian Hukum Islam 17, no. 1 (2023): 13–26. https://doi.org/10.24090/mnh.v17i1.7902.

Masyitoh, Dewi, Rahma Dewi Mustika, Ahilla Salma Alfaza, and A F Hidayatullah. “Amin Abdullah dan Paradigma Integrasi‑Interkoneksi.” Jurnal Sains Sosial Dan Humaniora (JSSH) 4, no. 1 (2020): 81–88. https://doi.org/10.30595/jssh.v4i1.5973.

Mufid, Abdul, and Thomas Djamaluddin. “The Implementation of New Minister of Religion of Brunei, Indonesia, Malaysia, and Singapore Criteria Towards the Hijri Calendar Unification.” HTS Teologiese Studies / Theological Studies 79, no. 1 (2023). https://doi.org/10.4102/hts.v79i1.8774.

Musyafa, Muhammad Alwi, and Siti Tatmainul Qulub. “Urgensi Penyatuan Kalender Hijriah Global.” Elfalaky: Jurnal Ilmu Falak 5, no. 2 (2021): 256–65.

Niri, Mohammaddin Abdul, Mohd Hafiz Jamaludin, Mohd Saiful Anwar Mohd Nawawi, Nurulhuda Ahmad Zaki, and Raihana Abdul Wahab. “Astronomy Development since Antiquity to Islamic Civilization from the Perspective of Islamic Historiography.” Journal of Al-Tamaddun 18, no. 1 (2023): 169–77. https://doi.org/10.22452/JAT.vol18no1.14.

Ramsey, J. B. “Tests for Specification Errors in Classical Linear Least-Squares Regression Analysis.” Journal of the Royal Statistical Society Series B: Statistical Methodology 31, no. 2 (1969): 350–71. https://doi.org/10.1111/j.2517-6161.1969.tb00796.x.

Rasoolimanesh, S. Mostafa. “Discriminant Validity Assessment in PLS-SEM: A Comprehensive Composite-Based

Approach.” Data Analysis Perspectives Journal 3, no. 2 (2022): 1–8.

Ringle, Christian M., and Marko Sarstedt. “Gain More Insight from Your PLS-SEM Results.” Industrial Management & Data Systems 116, no. 9 (2016): 1865–86. https://doi.org/10.1108/IMDS-10-2015-0449.

Roemer, Ellen, Florian Schuberth, and Jörg Henseler. “HTMT2–an Improved Criterion for Assessing Discriminant Validity in Structural Equation Modeling.” Industrial Management & Data Systems 121, no. 12 (2021): 2637–50. https://doi.org/10.1108/IMDS-02-2021-0082.

Saksono, Tono. “Kalender Islam Global: Perspektif Syariah, Ekonomi, Dan Politik.” JURIS (Jurnal Ilmiah Syariah) 15, no. 2 (2016): 143–52.

Sarstedt, Marko, and Nicholas P. Danks. “Prediction in HRM Research–A Gap between Rhetoric and Reality.” Human Resource Management Journal 32, no. 2 (2022): 485–513. https://doi.org/10.1111/1748-8583.12400.

Selya, Arielle S, Jennifer S Rose, Lisa C Dierker, Donald Hedeker, and Robin J Mermelstein. “A Practical Guide to Calculating Cohen’s F2, a Measure of Local Effect Size, from PROCMIXED.” Frontiers in Psychology 3 (2012): 111 (1-6). https://doi.org/10.3389/fpsyg.2012.00111.

Shah, Syed Hamad Hassan, Lei Shen, Syed Hussain, and Syeda Mariam. “How Consumer Perceived Ethicality Influence Repurchase Intentions and Word-of-Mouth? A Mediated Moderation Model.” Asian Journal of Business Ethics 9 (2020): 1–21. https://doi.org/10.1007/s13520-01900096-1.

Shmueli, Galit, and Otto R Koppius. “Predictive Analytics in Information Systems Research.” MIS Quarterly 35, no. 3 (2011): 553–72.

Shmueli, Galit, Marko Sarstedt, Joseph F. Hair, Jun-Hwa Cheah, Hiram Ting, Santha Vaithilingam, and Christian M. Ringle. “Predictive Model Assessment in PLS-SEM: Guidelines for Using PLSpredict.” European Journal of Marketing 53, no. 11 (2019): 2322–47. https://doi.org/10.1108/EJM-02-2019-0189.

Sufratman. “Integrasi Agama dan Sains Modern di Universitas Islam Negeri (Studi Analisis Pemikiran M. AminAbdullah).” Al-Afkar 5, no. 1 (2022): 210–28.

Syarif, Muh Rasywan. “Ikhtiar Akademik Mohammad Ilyas Menuju Unifikasi Kalender Islam Internasional.”ELFALAKY: Jurnal Ilmu Falak 1, no. 1 (2017): 19–29.https://doi.org/10.24252/ifk.v1i1.6430.

Syarif, Muhammad Rasywan, Sakirman, Abdul Syatar, and Nur Lela. “The Transformation of Rukyah Al-Hilal: Integrating Digital Imaging Technology in Islamic Moon Sighting Practices.” Malaysian Journal of Syariah and Law 13, no. 1 (2025): 314–24. https://doi.org/10.33102/mjsl.vol13no1.751.

The Unified Global Hijri Calendar. Yogyakarta: The Central Board of Muhammadiyah, 2025.

Utami, Guinea, and Danny Sanjaya Arfensia. “Adaptasi Binge-Watching Engagement Scale Questionnaire (BWESQ)dalam Bahasa Indonesia.” Jurnal Penelitian DanPengukuran Psikologi: JPPP 13, no. 2 (2024): 94–110.https://doi.org/10.21009/JPPP.132.03.

Waston. “Pemikiran Epistemologi Amin Abdullah dan Relevansinya Bagi Pendidikan Tinggi di Indonesia.” Profetika: Jurnal Studi Islam 17, no. 1 (2016): 80–89.https://doi.org/10.23917/profetika.v17i01.2102.

Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. 8th ed. Boston, MA: Cengage Learning, 2025.

Yamin, Mohamad, Nanat Fatah Natsir, and Erni Haryanti. “JaringLaba-Laba, Interaksi-Interkoneksi Universitas Islam NegeriSunan Kalijaga Yogyakarta.” JIIP - Jurnal Ilmiah IlmuPendidikan 5, no. 1 (2022): 302–9.https://doi.org/10.54371/jiip.v5i1.413.

Downloads

Published

2026-06-30

Most read articles by the same author(s)