Japan Overtime 100-Hour Deregulation Guide

Woman reviewing production charts at a factory workstation with a robotic arm behind her

This content applies specifically to Japan, South Korea, United Kingdom, United States.

If your employer says Japan will soon permit 100 hours of overtime every month, that description misses the central rule. The reported change does not create a new 100-hour statutory cap: standard overtime remains generally limited to 45 hours per month and 360 hours per year, while special provisions still require overtime plus holiday work to remain below 100 hours in any single month.

The confusion comes from mixing up a legal ceiling with administrative guidance. The exact effective date and final implementation details have not been confirmed, so relative claims such as “next month” need checking against Japanese government notices.

 

What limits still apply

Japan’s statutory hours are, in principle, eight hours a day and 40 hours a week. Work beyond them requires a 36 Agreement—a labor-management agreement concluded with a union or employee representative and filed with the competent Labour Standards Inspection Office.

  • Standard limit: 45 overtime hours per month and 360 per year
  • Special provision: only for a temporary, ordinarily unpredictable workload increase
  • Annual ceiling: at most 720 overtime hours
  • Single-month ceiling: less than 100 hours, combining overtime and holiday work

A 36 Agreement therefore does not provide unlimited overtime. Multi-month and frequency restrictions must also be checked.

 

What Japan overtime deregulation may change

The reported policy concerns more flexible use of administrative guidance that strongly encouraged companies to remain within 45 hours. It does not automatically remove the agreement, filing, special-provision, annual, monthly, or health-protection requirements. This distinction helps you assess a workplace claim without treating an exceptional boundary as a normal monthly target.

 

Why a 95-hour month is not enough

Suppose overtime and holiday work total 95 hours in one month. Being below 100 hours does not establish legality by itself: the employer must still satisfy the multi-month standard, remain within 720 annual overtime hours, check the permitted number of months above 45 hours, and meet the stated temporary reason and procedures.

 

What the full review helps verify

The original article on Injoys explains the statutory ceiling versus administrative guidance, the separate discretionary labor system, and comparisons with South Korea, the United Kingdom, and the United States. Its structured checks are useful before accepting a simplified headline or workplace explanation.

Read the full article on Injoys

 

Who should check first

Employees and employers using or considering a 36 Agreement should verify the rules first, especially where a special provision is invoked. Construction, automobile driving work, physicians, and other fields may face separate methods or special rules; the final scope, covered industries, effective date, and health conditions depend on the eventual policy document.

Today, check the applicable notices and regulations from Japan’s Ministry of Health, Labour and Welfare, including the effective date and multi-month standard, rather than relying on “100 hours” alone. Use the original article on Injoys as a guide to the questions that need official confirmation.

Read the full article on Injoys

This post was written with assistance and published on a channel run by Injoys (injoys.com). The original article and its sources are at the link above.

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