⏱ Work Hours Calculator (South Korea)
Enter start and end times for each day to get weekly hours, overtime and night-work hours, and weekly pay with the 50% premiums required by Korea's Labor Standards Act. Overnight shifts work too.
How to use it
Tick the days you work and enter your start time, end time and unpaid break (minutes) for each. The default is Monday–Friday, 9:00 to 18:00 with a 60-minute break — 8 hours a day, 40 a week. If the end time is earlier than the start time, the shift is treated as ending the next day (22:00 → 07:00 = 9 hours with no break). Add your hourly wage in Korean won to see weekly pay including the legally required overtime and night-work premiums.
This calculator follows South Korea's Labor Standards Act (근로기준법). It's built for foreign workers, students on part-time (D-2/D-4) permits, working-holiday visitors and anyone on a Korean payroll who wants to double-check their hours.
Overtime in Korea
Korea's statutory working hours are 8 hours a day and 40 hours a week. Time beyond either limit is overtime (연장근로), and by agreement it may not exceed 12 hours a week — the well-known 52-hour workweek cap. This calculator applies both tests without double counting:
- Hours beyond 8 in a single day are that day's overtime.
- If the remaining hours (up to 8 per day) add up to more than 40 in the week, the excess is also overtime.
So 9 hours a day for 5 days is 5 hours of overtime, and 8 hours a day for 6 days is 8 hours of overtime.
Night work
Work between 10 PM and 6 AM is night work (야간근로). Hours that are both overtime and night work earn both premiums — 100% base + 50% overtime + 50% night. Breaks are assumed to be taken during daytime hours first, so if you took your break at night your actual night hours may be slightly lower.
Formulas
- Daily hours
end − start − break(+24h if the shift ends after midnight) - Base pay
hourly wage × total hours - Premiums
hourly wage × 0.5 × (overtime hours + night hours)
Required breaks and premiums in Korea
Employers must give at least 30 minutes of break for a 4-hour shift and 1 hour for an 8-hour shift, during working time. Breaks are unpaid and don't count as work hours.
| Type | When | Premium |
|---|---|---|
| Overtime | Over 8h/day or 40h/week | 50% of ordinary wage |
| Night work | 10 PM – 6 AM | 50% of ordinary wage |
| Holiday work | Weekly rest day or public holiday | 50% up to 8h, 100% beyond |
Overtime, night and holiday premiums apply to workplaces that regularly employ 5 or more workers (choose "Don't apply" for smaller ones). Holiday-work premiums and weekly holiday pay (주휴수당) are not included here. Comprehensive-wage, flexible and selective working-hour arrangements are calculated differently. The 2026 minimum wage is ₩10,320 per hour. Your employment contract and company rules govern actual pay; the Ministry of Employment and Labor helpline is 1350 (English available).