Indonesia is the world’s largest Muslim-majority country, with a population of about 270 million, and roughly 87% of its people are Muslim. Faith is woven into daily life through prayer, fasting, and dietary rules, and the workplace is an extension of that reality. As more Japanese companies hire Indonesian talent under diverse statuses of residence—including Specified Skilled Worker, Technical Intern Training, and highly skilled international talent—knowledge of religious considerations is shifting from a “nice-to-have skill” to an essential part of hiring practice.

Workplace problems caused by a lack of religious understanding often stay hidden because the people affected find it hard to speak up, and by the time issues surface they frequently end in resignation. This article systematically explains points to watch when welcoming Indonesian Muslim employees—from confirming institutional requirements to setting up day-to-day operations. We cover practical checklists and failure cases from pre-hire preparation through post-joining retention support, so HR professionals and frontline managers can use it as a reference.

Why hiring of Indonesian talent is rising—and why religious consideration matters

Against the backdrop of Japan’s labor shortages, acceptance of talent from Indonesia is expanding rapidly. According to statistics from the Immigration Services Agency of Japan, the number of foreign residents of Indonesian nationality continues to rise year by year, with notable activity in Specified Skilled Worker fields such as manufacturing, nursing care, agriculture, and construction. As detailed in our foundational article on hiring foreign workers, alongside building recruitment channels, cultural consideration after acceptance is the single largest factor that determines retention.

What stands out when hiring Indonesian talent is that religious practice directly affects work behavior. Prayer times, physical changes during the fasting month, and requirements around halal (food and conduct permitted under Islamic law) touch the workplace’s systems themselves—schedules, cafeteria operations, and more. Treating these as mere “personal habits” risks damaging trust and losing strong employees.

By contrast, workplaces that provide appropriate consideration report that Indonesian talent stays longer and that diversity efforts create a positive cycle on the ground. Viewing religious consideration not as a cost but as a long-term talent investment is an important decision criterion in management judgment.

Islam basics: five practices hiring managers should know first

Islam has the “Five Pillars” that Muslims practice in daily life. Hiring managers should understand them not merely as religious doctrine, but as behavioral norms that affect the work environment.

1. Profession of faith (Shahada) This is the declaration of being Muslim. No special workplace response is required, but knowing it as background to solidarity among colleagues of faith is useful.

2. Prayer (Salah) Prayer five times a day is obligatory. When prayer times overlap with working hours, how you respond becomes the most important practical issue (details in the next section).

3. Fasting (Sawm) During the month of Ramadan (the ninth month of the Islamic calendar), Muslims abstain from food and drink during daylight hours. Because stamina and concentration can be affected, you need to review work allocation and safety management.

4. Almsgiving (Zakat) This is the duty to give part of one’s income to those in need. It has no direct impact on pay or tax administration, but keep in mind that temporary personal expenses often rise around Eid at the end of Ramadan.

5. Pilgrimage (Hajj) This is the once-in-a-lifetime obligation of pilgrimage to Mecca. Long-leave requests may come during the period of performance (the month of Dhu al-Hijjah). Confirm in advance against your work rules and annual paid leave practices.

In addition, the concepts of halal (permitted) and haram (prohibited) connect directly to operations. Pork and alcohol are representative haram items, and consideration is needed in cafeteria operations and company social events. Sharing this basic knowledge across the entire hiring team is the first step in cultural consideration.

Prayer (Salah) and working-hour adjustments: common questions from the field

Common questions from the field The most frequent is: “What should we do when prayer time overlaps with the work schedule?”

Approximate times for the five daily prayers (Japan Standard Time, summer) are as follows.

  • Fajr (before dawn): roughly 4:00–5:00 a.m.
  • Dhuhr (after midday): roughly 12:00–1:30 p.m.
  • Asr (afternoon): roughly 3:00–4:30 p.m.
  • Maghrib (after sunset): roughly 6:30–7:30 p.m.
  • Isha (night): roughly 8:00–9:00 p.m.

On a daytime shift (9:00 a.m.–6:00 p.m.), Dhuhr and Asr fall within working hours. Each prayer takes about 15–20 minutes including ablution (wudu). In practice, more companies are adopting approaches such as “building Dhuhr into the lunch break” or “assigning Asr to a time-shifted break.”

Prayer requires water for purification, so a wash area near the prayer space is desirable. Simply opening a corner of a changing room or an unused meeting room as a prayer space can greatly change Indonesian employees’ satisfaction. Many bring a prayer mat (sajadah) to work, so providing storage space is also appreciated.

As noted in our explanation of statuses of residence for highly skilled international talent, regardless of status of residence, reasonable accommodation of religious practice during work is foundational to retention. Documenting prayer-time adjustments as “flexible application of work rules” rather than “special treatment” also helps maintain fairness with other employees.

Adult male Muslims are strongly encouraged to attend congregational Friday noon prayer (Jumu’ah) at a mosque. Including travel to the nearest mosque, absences of about 1.5–2 hours can occur. Setting a policy in advance—such as flextime or makeup breaks—is an important decision criterion for preventing confusion on site.

Workplace management during Ramadan

Ramadan is the fasting month corresponding to the ninth month of the Islamic calendar. Because the Islamic calendar is a purely lunar calendar about 11 days shorter than the solar year, the start date moves earlier each year. In 2026 it will fall roughly from early February to early March. From sunrise to sunset, people abstain from food and drink, so stamina, concentration, and the risk of work errors can change.

From a safety-consideration perspective

Ministry of Health, Labour and Welfare occupational safety and health management duties make it the employer’s responsibility to strengthen health checks during Ramadan in work environments with dehydration risk (heat, outdoors, heavy labor). In atmospheres where people hesitate to report feeling unwell, reporting is delayed and the risk of occupational accidents rises. Daily health checks and proactive shifts to lighter duties are required.

Adjusting work schedules

It is effective to concentrate complex tasks in the morning, when concentration is higher, and assign lighter or review work in the afternoon, when fasting fatigue tends to appear. Considering more flexible clock-out times so employees can make iftar (the meal breaking the fast after sunset) also contributes greatly to relationship-building.

Consideration in cafeterias and break rooms

For Muslims who are fasting, being forced to watch others eat and drink in front of them is a mental burden. Avoid environments that effectively require meals in the cafeteria or break room, and provide consideration so fasting employees can rest in a separate space.

Responding to Eid al-Fitr (festival at the end of the fast)

The three days starting the day after Ramadan ends are the major festival Eid al-Fitr (Lebaran). Many people request long leave for homecoming, prayer, and family visits. It is essential to state advance-application rules clearly in the work rules and build them into annual shift-planning.

Halal food and responses in cafeterias and social events

Halal accommodation goes beyond ingredient selection to management of cooking equipment and processes. “We prepared a menu without pork” is sometimes not enough, so caution is needed.

Points to confirm for practical cafeteria response

The baseline is complete exclusion of ingredients containing pork or lard (pork-derived fat), avoidance of seasonings that contain alcohol (such as mirin and cooking sake), prohibition on sharing utensils used for pork (separate storage), and use of halal-certified ingredients and seasonings.

Japan has no single unified halal certification standard; multiple certifying bodies operate in parallel. Discuss with cafeteria operators before hiring, clarify how far you can accommodate, and obtain agreement from both candidates and the employer—this is an important decision criterion. When full halal meal service is difficult, allowing packed lunches and providing a microwave and refrigerator is evaluated as a realistic and sincere response.

Points to watch at social gatherings and internal events

Social events centered on alcohol are hard for Muslims to join. The idea that “it’s fine if they just don’t drink” is mistaken; even serving glasses that contain alcohol can conflict with haram. Minimum consideration is preparing non-alcoholic drinks and, for food, either offering a halal menu or confirming and communicating permission to bring a packed lunch in advance.

As explained in our article on workplace communication with Myanmar talent, consideration for people from Southeast Asia is not a one-size-fits-all response; approaches differ by country and religion. Indonesian employees (mostly Muslim) and Myanmar employees (mostly Buddhist) require entirely different consideration regarding meals, prayer, and holidays.

Religious calendar and practical attendance and leave management

Because the Islamic (Hijri) calendar is purely lunar, religious observances shift to different dates each year. Grasping major religious events and their impact on Japan’s work calendar in advance is essential.

Major religious events and workplace impact (approximate)

Ramadan (fasting month) moves about 11 days earlier each year. For 2026, early February to early March is a rough guide. Work shifts and safety management need review. Eid al-Fitr (festival at the end of the fast) runs for three days from the day after Ramadan ends and is a period when long-leave requests concentrate. Eid al-Adha (Festival of Sacrifice) falls about 70 days after Ramadan and involves prayer and symbolic animal sacrifice. The Islamic New Year (1 Muharram) is a relatively quiet holiday, though some may wish to pray. Mawlid (the Prophet’s birthday) is a day celebrating the Prophet’s birth, and some employees may wish to join prayer or gatherings.

In attendance management, you need annual shift plans that anticipate concentrated paid-leave requests in these periods. Stating in the work rules that “paid-leave applications for religious observances must be submitted X months in advance” helps balance business continuity with individual practice of faith.

Under the conditions for permission of statuses of residence set by the Immigration Services Agency of Japan, sincere performance of the employment contract (clear statement and observance of working conditions) is also required. Remember that documenting working conditions—including paid-leave responses for religious observances—is also a legal obligation of the employer.

Failure patterns and how to avoid them

Failure patterns and how to avoid them Knowing these is the shortest path to not repeating the same mistakes. The following are typical cases reported from actual workplaces.

Pattern 1: Carelessly eliminating the prayer space There are cases where a prayer space was removed for cost cutting or to reuse a meeting room, and several Indonesian staff resigned within months. Securing a prayer space delivers retention value beyond its physical cost. If change is necessary, always consult in advance and present an alternative space before acting.

Pattern 2: Forcing overtime during Ramadan There are cases where the same overtime as usual was required during Ramadan and leaving before sunset was not allowed, severely damaging trust with Muslim employees. Physical depletion during fasting is significant, and from a duty-of-care perspective long overtime should be avoided as much as possible.

Pattern 3: Insufficient consideration at social events There are cases where events were planned on the assumption that “as long as we don’t serve pork it’s fine,” and Muslim staff left the table when alcohol was placed on it. Halal consideration is needed for both food and drink.

Pattern 4: Leaving religious observances as a “personal matter” There are cases where a policy of “leaving religion to the individual” meant needed consideration never happened, and isolation led to early resignation. Building consideration into systems is what distinguishes it from leaving everything to the individual.

Pattern 5: Misalignment from insufficient explanation before hiring There are cases where the scope of religious accommodation was not clarified at interview or offer stage, so after joining a gap appeared—“this is not what we expected.” Showing the company’s response policy in writing at the hiring stage and obtaining mutual agreement is the fundamental way to avoid this.

Points hiring managers often miss, and a practical checklist

Points hiring managers often miss One of the most common is failing to recognize that religious consideration varies by individual. Even among Muslims, the degree of practice ranges widely—from those who strictly observe every prayer, to those who keep only the Ramadan fast, to those who respond flexibly depending on social context. Rather than deciding uniformly that “Indonesians do X,” it is important to understand each person’s practice through hearing at hiring and onboarding.

For women who are Muslim, wearing a hijab (headscarf) may conflict with workplace dress codes. Prepare practical solutions before joining—for example, how to combine it with hard hats in manufacturing or adjust with hygiene caps in food service.

The “Guidelines for the Employment Management of Foreign Workers” published by the Ministry of Health, Labour and Welfare prohibit disadvantageous changes to or coercion of working conditions on the basis of religion or belief, and also refer to workplace environment improvement as an employer’s duty of effort. We also recommend checking labor-related laws available on e-Gov and regularly updating your company’s work rules and operating practices. Documenting the scope of reasonable accommodation as an internal standard supports both trouble prevention and legal compliance.

For concrete consultation on hiring and acceptance systems, please contact us via the Foreign Talent Insights inquiry page.

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Practical checklist: items to confirm before hiring and after accepting Indonesian Muslim employees

Confirmation items for the pre-hire phase (job posting and interviews) are as follows.

  • Secure a prayer space (place for a prayer mat and water for purification) or consider alternatives
  • Document in the work rules how prayer times and leave for religious observances are handled
  • Confirm and document the scope of halal accommodation for the cafeteria and internal meal service
  • Explain the scope of religious accommodation at interview and obtain written agreement
  • Confirm workplace rules on religious dress such as the hijab in advance and prepare adjustment options

Confirmation items for the post-hire phase (acceptance and retention) are as follows.

  • Onboarding hearing: confirm individual prayer frequency and whether they observe Ramadan
  • Communicate shift and overtime policy during Ramadan to all staff
  • Build an environment where people can easily report feeling unwell or raise religious concerns (meeting opportunities and a consultation contact)
  • Halal labeling on cafeteria menus, or permission to bring packed lunches and use a microwave
  • Share in writing the rules for annual paid-leave applications aligned with religious observances
  • Provide information on Japanese-language support and daily-life consultation contacts (e.g., Hello Work Foreign Employment Service Centers)
  • Conduct retention hearings at least once a year and review the content of accommodations

Diagram: pre-hire confirmation flow

Below is a text version of the recommended confirmation flow when hiring Indonesian Muslim employees. Follow the steps in order.

Step 1 is an internal environment inventory (when you begin considering hiring). Check whether a prayer space is available, the cafeteria’s halal readiness, and whether work rules include leave provisions for religious observances. If issues are found, decide on a policy before moving to the next step.

Step 2 is deciding and documenting your response policy. Secure time, place, and space for prayer breaks, and decide the scope of halal meal provision (cafeteria improvements or permission to bring boxed lunches). Document the decisions as internal rules that hiring staff, site managers, and cafeteria staff can share.

Step 3 is disclosure and mutual agreement in job postings and interviews. Clearly state the company’s scope of accommodation in the job posting, and hear about each individual’s religious practice in the interview. After a job offer, confirm mutual agreement in writing.

Step 4 is reflecting this in the notice of working conditions. Clearly state religious accommodation items, how prayer time is handled, and application rules for religious observance leave in the notice of working conditions, then proceed with status of residence applications and renewals.

Step 5 is regular follow-up after joining. Conduct hearings at three and six months after joining, and hold advance coordination meetings before Ramadan. Building a relationship in daily work where people can easily report health issues or seek advice ultimately leads to retention results.

Frequently Asked Questions (FAQ)

Q1. Does interrupting work for prayer create fairness issues with other employees?

Reasonable accommodation based on religion or belief is part of the duty of consideration required under labor-related laws. By showing a willingness to provide similar accommodation to employees of other faiths and positioning it as a “faith and spiritual break system” available to everyone, you can ensure fairness. It is important to demonstrate as a system that you are not favoring only a specific religion.

Q2. During Ramadan, can you make the person “stop” fasting?

No. Fasting is an individual’s practice of faith, and an employer forcing interruption may infringe freedom of belief. However, for work with occupational health and safety risks (high-temperature environments, heavy machinery operation, etc.), flexibly changing job content or placement with the person’s consent is required as a duty of care for safety.

Q3. If you only have a cafeteria without halal certification, how should you respond?

When full provision of halal meals is difficult, a practical response is to allow bringing boxed lunches and provide equipment such as a microwave and refrigerator. In the cafeteria, excluding pork and alcohol-containing ingredients and organizing ingredient labeling creates an environment where the person can decide for themselves, and this is valued as a minimum sincere accommodation.

Q4. What if a hijab does not fit workplace safety rules?

It is recommended to explore solutions together with the person concerned regarding how to combine it with hard hats or hygiene caps. In practice, many manufacturing sites and food factories use approaches that combine a hijab with a hard hat (using an inner cap, adopting stretch materials, etc.). Conduct hands-on checks before joining and decide on a form both sides can accept.

Q5. Is there anything to confirm regarding religious accommodation in status of residence applications?

Religious accommodation is not directly related to the status of residence application itself, but it is important that the working conditions stated in the employment contract (working hours, days off, breaks, etc.) do not diverge from actual practice. When allowing prayer breaks or religious observance leave, it is considered desirable to clearly state this in the employment contract or notice of working conditions before applying. For details, please check the latest information on the official website of the Immigration Services Agency of Japan.

Q6. Does the degree of religious practice differ even among Indonesians?

Yes, it differs greatly. There are differences between people from urban and rural areas, and also by educational background and generation. Some practice prayer strictly, while others emphasize only Ramadan. Grasping practice through individual hearings at hiring and onboarding, and avoiding one-size-fits-all responses, is the basic stance for retention support.

Summary: Religious accommodation is central to workplace retention strategy

Workplace accommodation for Indonesian Muslims goes beyond mere “cross-cultural response” and is a management measure to create an environment where hired talent can work with peace of mind for the long term. Securing prayer space, adjusting work during Ramadan, responding to halal meals, and managing attendance for religious observances—all of these can be operated without confusion on site if they are prepared in advance as systems.

basic article on hiring foreign workers also explains, success in hiring international talent hinges on designing post-hire onboarding and cultural support as one integrated whole. While regularly checking the “Guidelines for the Employment Management of Foreign Workers” published by the Ministry of Health, Labour and Welfare and labor-related laws available on e-Gov, please update your company’s work rules and operating procedures.

Companies that correctly understand religious backgrounds and establish reasonable accommodation as systems become workplaces where Indonesian talent “want to work long term.” In the Japanese market, where labor shortages are growing more severe, many workplaces are beginning to prove that such a reputation leads to attracting quality applicants and improving retention. If you have concerns or questions about hiring and acceptance systems, please consult Foreign Talent Insights. Our specialist staff will support you at a practical level.

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Please also review practical articles on related themes as needed.