Are late-night hours compensated under discretionary work?

Yes. The discretionary work system does not waive night-shift rules; any work between 22:00 and 05:00 legally requires an additional 25% premium.

How does holiday work operate under discretionary contracts?

Statutory weekly rest days (Houtei Kyuujitsu) are excluded from deemed hours; work performed on statutory holidays must be paid in full at a 35% premium.

JapanUpdated for 2026Finance

Japan Discretionary Work Deemed Hours Calculator 2026 (Sairyou Roudousei)

Calculate statutory compensation under Japan's Discretionary Work System (Labor Standards Act Art. 38-3 & 38-4), including deemed daily overtime, mandatory late-night, and holiday premiums.

Working Hours & Schedule Salaries & Monthly Wages Labor Law & Employment

Calculated Result

Gross Monthly Earnings Total

¥500,000

Deemed Overtime Allowance

¥93,750

Calculator Inputs

Base Monthly Salary

Quick select:

Agreed Deemed Daily Working Hours

Quick select:

Monthly Scheduled Working Days

Quick select:

Actual Late-Night Hours Worked (22:00-05:00)

Quick select:

Gross Monthly Earnings Total

¥500,000

Deemed Overtime Allowance

¥93,750

Late-Night Premium Pay (25%)

¥6,250

Total Deemed Overtime Hours

30 hours

Deemed hours exceeding 8 hours per day guarantee fixed monthly overtime pay.

Salary Components

Base Salary

¥400,000(80%)

Deemed Overtime Pay

¥93,750(19%)

Late-Night Allowance

¥6,250(1%)

Based on Labor Standards Act Art. 38-3 & 38-4. Discretionary systems do NOT exempt employers from paying mandatory late-night (25%) or statutory holiday (35%) allowances.

This calculator is a mathematical model for general financial estimation, planning, and educational guidance. Results depend on your inputs and standard formulas, and do not constitute binding financial, tax, or investment advice. Always consult a qualified professional before making financial decisions.

Official Statute: 労働基準法第38条の3 (専門業務型) 及び第38条の4 (企画業務型裁量労働制・1日8時間超みなし割増賃金算定基準)Last Verified: 2026-09-03

Calculation Methodology

Daily Deemed Overtime = Max(Deemed Hours - 8, 0); Monthly Deemed Overtime Pay = Deemed Overtime × Days × Hourly Wage × 1.25.

Frequently Asked Questions

Yes. If the labor agreement sets deemed hours above 8 hours per day (e.g. 9.5 hours/day), the 1.5 hours of daily excess must be compensated with a 1.25x statutory overtime premium.

Related Calculators

Recommended tools and calculators tailored to your current calculation

Explore all tools

Japan

Japan Discretionary Work Deemed Hours Calculator 2026 (Sairyou Roudousei)

Calculator Inputs

Salary Components

Calculation Methodology

Frequently Asked Questions

Related Calculators

Japan Flextime Overtime Settlement Calculator 2026

Japan Overtime Pay Calculator 2026 (Premium Wages & Night Surcharge)

Japan Holiday Work Calculator 2026 (Furikae vs. Daikyu 35% Surcharge)

Japan Annual Paid Leave Entitlement Calculator 2026 (Yukyu)

Japan Prefectural Minimum Wage Compliance Calculator 2026

Japan Workers' Accident Compensation Calculator 2026 (Rouzai 80% Benefit)

Japan Temporary Staffing Margin Rate Calculator 2026 (Haken Margin)

Japan Dismissal Notice Allowance Calculator 2026 (Kaiko Yokoku Teate)