Ultra-Short-Time Workers
It's like a work schedule deliberately trimmed just below 15 hours a week so employers can skip the biggest full-benefit perks.
Definition Think of entering a theme park with individual ride tickets instead of an all-inclusive day pass. In South Korea, an ultra-short-time worker (*chodansigan geunroja*) is an employee whose contractually scheduled work hours average less than 15 hours per week over a 4-week period. Because their hours fall below this legal threshold, they are excluded from core statutory benefits such as paid weekly holiday allowances, annual leave, and severance pay.
The Invisible 15-Hour Threshold
Picture a part-timer working 7 hours on Saturday and 7 hours on Sunday at a cafe—totaling exactly 14 hours a week. Under South Korean labor law, anyone contracted to work under 15 hours a week is classified as an ultra-short-time worker. Whether you work 5 hours or 14.5 hours, you remain below this dividing line.
Korean labor law treats 15 hours a week as a massive threshold for worker benefits. Step over it, and you unlock a suite of legal protections and paid perks. Fall just short of it, and most of that safety net disappears. The law was designed so that lighter working hours receive a proportionally lighter level of protection.
To keep labor costs down, many business owners choose to split single jobs into sub-15-hour shifts. Instead of hiring one person for 30 hours, they hire two or three people for 10 to 14 hours each. This widespread practice—known locally as 'shift-splitting'—is why sub-15-hour gigs are so common today.
Why Paid Holidays and Severance Disappear
How does working under 15 hours change what you actually take home? The most immediate hit is to your weekly paycheck. In Korea, regular employees who work 15 or more hours a week and fulfill their scheduled shifts earn a Weekly Holiday Allowance—an extra full day of paid wages each week. Ultra-short-time workers, however, get zero weekly holiday pay.
The exclusions do not stop there. Even if you work faithfully for over a year at the same workplace, you are not entitled to statutory severance pay when you leave. You also receive no paid annual leave. You simply get paid the straight hourly wage for the exact hours you were on the clock.
The same applies to the national four-tier social insurance system. While Workers' Compensation Insurance (covering workplace accidents) is mandatory for everyone, employers are exempt from enrolling ultra-short-time workers into the National Pension, Health Insurance, and Employment Insurance schemes.
The Flip Side: Flexibility vs. Job Insecurity
Ultra-short-time work is not inherently bad for every worker. For students balancing exams or parents juggling childcare, it can offer a flexible schedule tailored to their lifestyle. It allows people to earn targeted pocket money in short bursts while keeping the rest of their week open.
In reality, however, many workers take these mini-shifts simply because stable, full-time jobs are unavailable. To make a living, someone might work 14 hours at one convenience store and 14 hours at another, totaling 28 hours a week. Yet because hours are calculated separately per employer, they receive zero holiday allowances or severance pay from either shop.
As a result, critics argue that the 15-hour cutoff has backfired: instead of protecting vulnerable workers, it has become an incentive for employers to create fragmented, precarious jobs.
🤔 Common misconceptions
Ultra-short-time workers cannot receive any workers' compensation if they get injured on the job.
Workers' Compensation Insurance applies unconditionally from your very first hour on the job. Ultra-short-time workers are legally fully covered for any workplace injury.
🧺 Where you meet it
Jobs scheduled for under 15 hours per week in Korea that legally exempt employers from providing weekly holiday allowances, paid annual leave, and severance pay.