Ruyat Hilal Committee - Japan
Harmony of Faith and Science, Guided by Moonlight
The Ruyat Hilal Committee - Japan supports the religious life of Muslims in Japan by integrating astronomical observation with Islamic tradition. We are an organization that contributes to the unity and development of the Islamic community in Japan through providing accurate Hilal observation information, scheduling guidance for religious events, and promoting cultural understanding.
Activities to Strengthen Community Bonds
Mutual Understanding and Collaboration Locally and Globally
International Exchange and Collaboration
Our committee actively cooperates and exchanges information with domestic Islamic organizations and overseas astronomical research institutions. By deepening mutual friendship among members and promoting the unity and cooperation of the entire Ummah (Islamic community), we aim to realize the sustainable development of Islamic culture in Japan and contribute to society.
Hilal Observation and Religious Events
Supporting Your Religious Life Through Accurate Astronomical Observations
Hilal Observation Information
Our committee accurately observes the Hilal (thin crescent moon), which marks the beginning of the Islamic month, from multiple observation points in Japan. By combining the latest astronomical data with traditional observation methods, we rapidly disseminate highly reliable information to the entire community, providing exact schedules for important religious events such as Ramadan and Eid.
Academic Research and Educational Activities
We promote academic research on the relationship between the Islamic calendar and astronomy, while regularly hosting lectures and seminars. Spanning from foundational knowledge of astronomical observation to its connection with faith, we aim to deepen the understanding of Islamic culture throughout Japanese society and realize multicultural coexistence.
Organization Profile
| Organization Name | Ruyat Hilal Committee - Japan | |
| Representative Director | Dr. Salimur Rahman Khan | |
| Address | 3-42-7 Minami-Otsuka, Toshima-ku, Tokyo 170-0005 | |
| Phone Number | 03-3971-5631 | |
| Email Address | hilal@rhc.or.jp | |
| Number of Employees | 26 | |
| Date of Establishment | April 2025 | |
| Activity Description | The Ruyat Hilal Committee - Japan is an organization that provides real-time observation information of the "Hilal" (new moon), a crucial element in the Islamic calendar, to Muslims in Japan. By communicating accurate schedules for Ramadan, Eid, and other events, we support the smooth practice of religious life and contribute to promoting the understanding of Islamic culture in Japan. |