As the year 2025 approaches, Muslims across the world are preparing for the spiritual and transformative month of Ramadan. In Indonesia, one of the largest Muslim-majority countries, the start of Ramadan is a significant event, and this year, the Islamic organization Muhammadiyah has announced that it will observe the beginning of Ramadan on March 1, 2025. However, as with every year, the official start date for Ramadan in the country often depends on the government’s moon sighting, which can differ from Muhammadiyah’s determination.
This divergence raises an important question for many Indonesians: What does this mean for the rest of the country, especially regarding the government’s declaration? Here’s a closer look at how Muhammadiyah sets its Ramadan start date and what the government’s role is in this important religious observance.
Understanding Muhammadiyah’s Moon Sighting
Muhammadiyah, an independent Islamic organization in Indonesia, has its own system for determining the start of Ramadan, based on the principles of astronomical calculations. These calculations are made using precise data regarding the moon’s position and phases, allowing the organization to announce the start date of Ramadan several days before the actual sighting of the moon.

In 2025, Muhammadiyah has set the first day of Ramadan to begin on March 1. The organization’s method relies on the use of scientific instruments and mathematical principles, which is why it can predict the start of Ramadan well in advance. Muhammadiyah’s commitment to this method is deeply rooted in its belief in the importance of applying reason and science to religious practices.
This announcement from Muhammadiyah is significant because it provides clear guidance for the country’s Muslim population who follow this organization’s teachings. By setting the date ahead of time, Muhammadiyah allows people to prepare spiritually and practically, knowing exactly when they will begin their fasting and prayer routines.
The Government’s Role in Determining the Start of Ramadan
While Muhammadiyah’s prediction is widely followed by many Muslims in Indonesia, the government has its own process for determining the official start of Ramadan. The government relies on the Minister of Religious Affairs and the Indonesian Ulema Council (MUI) to announce the official date based on moon sighting.
The process involves a moon-sighting committee that assesses the visibility of the new moon at a number of designated observation points across the country. The committee’s task is to ensure that the moon is visible to confirm the start of Ramadan. The government’s decision often relies on the physical sighting of the moon, which can sometimes result in different regions of the country observing Ramadan on different days.
The government typically holds a rapat (meeting) close to the anticipated date for Ramadan, where experts, clerics, and astronomers discuss the conditions required to confirm the moon sighting. If the moon is visible on the designated night, Ramadan begins the following day. If the moon is not visible, Ramadan will begin a day later. This process can lead to some uncertainty regarding the exact start date, particularly in regions where the moon’s sighting is obscured by weather conditions.
The Key Differences: Muhammadiyah vs. Government Declaration
The main difference between Muhammadiyah’s method and the government’s approach lies in the reliance on astronomy versus actual moon sighting. Muhammadiyah’s use of scientific calculations offers a fixed date for the start of Ramadan, while the government’s reliance on the moon sighting process can lead to a delay in the announcement.
For example, Muhammadiyah’s announcement that Ramadan will begin on March 1, 2025, is based on astronomical calculations that determine when the new moon will be visible. However, the government may decide to hold off on confirming this date until a proper moon sighting is observed, which may result in Ramadan starting a day later, on March 2, 2025. This difference in practices often leads to some uncertainty for Indonesian Muslims, particularly those who follow the government’s official announcement.
Impacts on the Muslim Community
For Muslims in Indonesia, the start of Ramadan is a deeply important moment of spiritual reflection and devotion. Whether following Muhammadiyah’s prediction or the government’s official announcement, the observance of fasting and prayer during Ramadan is a time of unity and worship.
However, the discrepancy in dates can sometimes cause confusion or division within communities, particularly in regions where there are followers of both Muhammadiyah and the government’s declaration. In some cases, family members and friends may observe different dates for the start of Ramadan, leading to differences in when they begin fasting or celebrating Eid al-Fitr.
Despite these differences, many Indonesians embrace the spirit of Ramadan with a shared sense of devotion and community. Whether they begin fasting on March 1, as Muhammadiyah declares, or March 2, as the government may announce, the underlying message of Ramadan remains the same: a time for spiritual growth, charity, and reflection.
The Social and Cultural Significance of Ramadan in Indonesia
Ramadan in Indonesia is not only a time of personal reflection but also a time for deepening social and cultural ties within the community. From the bustling mosques to the streets filled with Ramadan bazaars, the month of fasting is a period of collective activity and celebration.
During Ramadan, many Indonesians engage in community activities such as communal iftar (breaking of fast), charity work, and social events that strengthen ties between neighbors, family members, and friends. The sense of unity during Ramadan is particularly pronounced in Indonesia’s diverse Muslim population, which includes followers of both Muhammadiyah and the government’s official moon sighting.
In cities like Jakarta, Yogyakarta, and Surabaya, you’ll find vibrant Ramadan markets, where locals gather to break their fasts with traditional dishes like soto (soup), ketupat (rice cakes), and kolak (sweet desserts). Special prayers, such as the Tarawih prayers, are held at mosques and Islamic centers, and many people take part in communal recitations of the Quran.
Looking Ahead: A Unified Approach?
In recent years, there have been discussions about the possibility of a more unified approach to determining the start of Ramadan in Indonesia. Some have called for greater collaboration between Muhammadiyah, the government, and other Islamic organizations to establish a single, agreed-upon date for Ramadan’s start.
Such a move could help alleviate confusion for Indonesian Muslims who follow different traditions, as well as foster greater national unity during the holy month. However, as of now, the government’s reliance on moon sightings and Muhammadiyah’s preference for astronomical calculations means that the start of Ramadan may continue to differ depending on where one lives in Indonesia.
Conclusion
As Indonesia prepares for Ramadan in 2025, the announcement by Muhammadiyah that Ramadan will begin on March 1 is significant, but it may not align with the government’s official moon-sighting declaration. This difference in practices highlights the diversity within the country’s Muslim community and underscores the importance of spiritual unity despite varying approaches. Whether one follows Muhammadiyah’s prediction or the government’s moon sighting, the essence of Ramadan remains the same: a time for self-reflection, charitable giving, and strengthening community bonds.
For Indonesian Muslims, the days leading up to Ramadan will be filled with anticipation, whether they are preparing for March 1 or waiting for the official government announcement. The excitement of this holy month will unite them in their shared devotion, regardless of the exact date, making Ramadan 2025 a deeply meaningful and cherished experience.
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