Korea's "52-hour week" has become an idiom. Yet that number appears nowhere in the Labor Standards Act. It is the 40 hours of art. 50(1) plus the 12 of art. 53(1) - and the 40 in front is the figure for ordinary hours only. Under a flexible scheme that half becomes 48 or 52, so a single week may lawfully run to 64 hours. The holiday substitution checker left this open - "whether those hours also count as overtime depends on the rest of the week" - and today we look at the week.
1. 52 is the ordinary-hours figure. A two-week flexible scheme reaches 60, a three- or six-month one 64. The same 60 hours breach art. 53 under ordinary hours and are lawful under a two-week scheme.
2. "Under 30 workers can go to 60" is over. Art. 53(3) had effect only until 31 December 2022 under addendum art. 2 - though the paragraph is still printed in the statute.
3. Three places have no ceiling at all. Four or fewer workers (Decree Table 1), the art. 63 exclusions, and the 5 sectors of art. 59 - each for a different reason.
It reads arts. 50, 51, 51-2, 52, 53, 56, 59, 63, 69, 71, 74(5) and 110 of Korea's Labor Standards Act, and Table 1 of its Enforcement Decree, as written. Art. 50(1) sets contract hours at 40 a week, but a two-week flexible scheme allows 48 in a given week (proviso to art. 51(1)), and the three-month and over-three-month schemes allow 52 in a week and 12 in a day (provisos to arts. 51(2) and 51-2(1)). On top of that sits the 12 hours a week of art. 53(1) and (2) - so the familiar "52-hour week" is the figure for ordinary hours only. The selective scheme of art. 52 is averaged over its settlement period, so no single week decides it. Art. 53(3), which let workplaces under 30 add eight more hours, had effect only until 31 December 2022 under addendum art. 2 of Act No. 15513. Workers aged 15 to under 18 get 35 hours plus 5 of overtime (art. 69); pregnant workers may do no overtime at all (art. 74(5)); and within a year of childbirth the caps are 2 hours a day, 6 a week and 150 a year (art. 71). The five sectors of art. 59 may exceed 12 hours by written agreement with the workers' representative, but must then give 11 consecutive hours of rest (art. 59(2)); and where art. 63 applies, the working-hours provisions do not. At four or fewer workers, Decree Table 1 contains neither art. 50 nor art. 53, so there is no ceiling at all. A breach carries up to two years or 20 million won under art. 110(1). This checker sees one week only - it cannot read the averaging period of the flexible and selective schemes, nor the 150-hour yearly cap. An estimate - confirm with your regional labour office or the Ministry call centre (1350).
52 is the ordinary-hours figure
The Act splits into two halves. Contract hours: art. 50(1) - "working hours in a week shall not exceed 40 hours, excluding break time". Overtime: art. 53(1) - "where the parties agree, working hours may be extended by up to 12 hours a week". Added together, 52.
But the flexible schemes raise the first number. The two-week scheme (art. 51(1)) has a proviso: "working hours in a given week shall not exceed 48 hours". The three-month scheme (art. 51(2)) and the over-three-month one (art. 51-2(1)) say "shall not exceed 52 hours in a given week, or 12 in a given day". Art. 53(2) then lays the same 12 overtime hours on top, so the weekly ceilings become 60 and 64.
The selective scheme (art. 52) is not measured by the week at all. The settlement period - one month, or three for research and development - is averaged against 40 hours, and art. 53(2) likewise caps overtime at 12 hours "averaged over that settlement period". One heavy week proves nothing on its own.
"Under 30 can go to 60" ended on 31 December 2022
Art. 53(3) still reads, in the statute today: "an employer with fewer than 30 regular workers may, where agreed in writing with the workers' representative ... extend working hours by up to 8 hours a week" on top of the extension already allowed. That is 40 + 12 + 8 = 60.
Underneath it sits a bracketed line: "arts. 53(3) and 53(6) as amended by Act No. 15513 (20 March 2018) are effective until 31 December 2022 under addendum art. 2 of that Act." That addendum is headed "Period of effect", and its text reads: "arts. 53(3) and (6) as amended shall have effect until 31 December 2022." From 1 January 2023 it is gone.
Art. 53(6), which lapsed with it, had said "paragraph 3 shall not apply to workers aged 15 to under 18". Once paragraph 3 was gone there was nothing left to shield them from. A paragraph being printed in the statute and a paragraph being available are two different things - the expiry lives only in the addendum.
The same ordinary-hours scheme, four different ceilings
The 12 hours of art. 53(1) belong to workers aged 18 or over. For those aged 15 to under 18, art. 69 says "working hours shall not exceed 7 a day or 35 a week; provided that, by agreement between the parties, they may be extended by up to 1 hour a day and 5 a week" - a weekly ceiling of 40.
For a pregnant worker, art. 74(5) states that an employer "shall not have a pregnant female worker perform work beyond contracted hours" - a flat prohibition that consent does not open. The ceiling stays at 40, meaning 40. Within a year of childbirth, art. 71 binds "even where a collective agreement exists": no more than 2 hours a day, 6 a week and 150 a year - so 46.
And the flexible schemes do not apply at all to under-18s or pregnant workers (arts. 51(3) and 51-2(3)). The selective scheme excludes them too: art. 52(1)(i) defines the covered workers as "excluding those aged 15 to under 18". The 64 hours of the previous section were never a route open to them.
Three places have no ceiling at all
First, four or fewer workers. The chapter-4 row of Decree Table 1 lists only "arts. 54, 55(1) and 63" - the same table the earlier articles kept returning to. Neither art. 50 nor art. 53 is there. No statutory weekly ceiling, and no premium either, because art. 56 is absent as well.
Second, art. 63: "the provisions on working hours, breaks and holidays in this chapter and chapter 5 shall not apply to" farming and forestry work such as cultivation and planting; livestock, sericulture and fishery work such as animal husbandry and the gathering or farming of aquatic life; and workers in monitoring or intermittent work approved by the Minister. The night-work premium and the wage provisions remain.
Third, the art. 59 special sectors. By written agreement with the representative an employer "may have workers work overtime in excess of the 12 hours a week under art. 53(1), or vary the break times". This one differs from the other two: only the 12-hour cap falls away, and art. 59(2) then requires 11 consecutive hours of rest between the end of one working day and the start of the next. The list is just 5 sectors - land and pipeline transport (excluding scheduled bus services), water transport, air transport, other transport services and health care - down from 26 in the 2018 amendment.
Going over the cap and not paying for it are two things
Different provisions, different penalties. Going over breaches art. 53(1), (2) or the main text of (4), and art. 110(1) provides up to two years' imprisonment or a fine of up to 20 million won. Not paying breaches art. 56(1) - and that one, as the unpaid wage article showed, moves to art. 107 on 8 October 2026, carrying up to five years or 50 million won.
So two things follow. Staying inside the cap does not remove the premium on hours past 40 - the provisions never overlap. And hours worked over the cap still carry the premium: work demanded unlawfully does not stop being work that was paid for. This checker looks only at the first half.
Art. 53(4), special extended work, is the door out. "Where there are special circumstances, an employer may extend working hours with the approval of the Minister and the consent of the worker" - both are needed, and where the situation is urgent the approval may follow without delay. Art. 53(7) then requires health checks or rest, and art. 53(5) lets the Minister afterwards "order that break time or holidays equivalent to the extended hours be given".
Questions that remain
Our rules of employment say "flexible scheme" - does that reach 64?
Only the two-week scheme runs on the rules of employment (art. 51(1)). The three-month and over-three-month schemes need written agreement with the workers' representative, setting out the covered workers, the unit period and the hours for each working day (or each week). Without that agreement you are on ordinary hours, and the ceiling is 52.
I worked 64 hours in a week but the period average is over. Is that fine?
No - that is a breach too. A flexible scheme is allowed only "within a range where the weekly working hours averaged over the unit period do not exceed art. 50(1)", so the per-week ceiling and the average condition must both hold. This checker sees one week and cannot read the average.
What about workers under 15 hours a week?
Art. 18(3) disapplies arts. 55 and 60 - holidays and annual leave. Arts. 50 and 53 are not among them. The contract hours are simply shorter; the ceiling is still 40 + 12.
Is monitoring work automatically art. 63?
No. Art. 63(iii) covers a person in monitoring or intermittent work "for whom the employer has obtained the Minister's approval". The approval is the requirement; the nature of the work alone does not reach the item.
Sources
Korean Law Information Center, Labor Standards Act - statute text - art. 50 (working hours), art. 51(1)-(3) (flexible scheme up to three months), art. 51-2(1),(2) (over three months), art. 52(1),(2) (selective scheme), art. 53(1)-(7) (limits on extended work), art. 56 (premiums), art. 59(1),(2) (the 5 sectors and 11 consecutive hours of rest), art. 63 (exclusions), art. 69 (under 18), art. 71 (within a year of childbirth), art. 74(5) (pregnancy), art. 110(1) (penalty), and addendum art. 2 of Act No. 15513 (period of effect).
Enforcement Decree of the Labor Standards Act - decree text - art. 7 and Table 1 (provisions applying to four or fewer workers - chapter 4: arts. 54, 55(1), 63).
Checker verification. Four schemes × four kinds of worker × three sector settings × two workplace sizes × two answers on special approval × six weekly hour figures = 1,152 cases were checked against the statutory logic in both languages - the contract-hours cap, the overtime cap, the weekly ceiling, the hours over it, the premium-bearing hours, and the verdict with its reasoning line all matched.
Left for another day
The unit-period average. Both flexible and selective schemes carry one, and this checker sees a single week.
The 150-hour yearly cap after childbirth. That figure only emerges across a year.
Art. 63(iv), "work prescribed by Presidential Decree". Its scope belongs to the Decree and is left out here.
Based on the 2026 provisions. The 40, 12, 48, 52, 35, 5, 6 and 150 figures, the period of effect and the penalties are the statute's; the 60-hour example and the framing of "three places with no ceiling" are our arrangement. The checker is an estimate and reads neither the written agreement, nor the unit-period average, nor the scope of an approval - confirm with your regional labour office or the Ministry of Employment and Labor call centre (1350).
