Working Time

Statutory working hours in Luxembourg: daily, weekly and derogations

Luxembourg law establishes a simple baseline — 8 hours per day, 40 hours per week — around which a system of absolute caps and sectoral derogations operates. The complexity of this system is frequently underestimated. The main pitfall for employers is treating sectoral derogations as automatic entitlements, when they are in fact conditional regimes subject to procedures, reference periods, and in some cases work organisation plans or ministerial authorisations.

Topic: Working Time Sources: Art. L. 211-5 · L. 211-12 · L. 211-18 · L. 211-21 · L. 211-23 · L. 211-25 · L. 211-26 · L. 212-4 · L. 212-6 · L. 216-3 · L. 123-1 · Luxembourg Labour Code Updated: 10 June 2026

Axis 1 — Normal working time and absolute caps

The normal working time is set at 8 hours per day and 40 hours per week (Art. L. 211-5). A collective agreement may set lower thresholds. Beyond normal hours, absolute caps apply to all regimes:

Rule	Daily	Weekly	Legal basis
Normal working time	8 hours	40 hours	Art. L. 211-5
Absolute cap (outside derogatory sectors)	10 hours	48 hours	Art. L. 211-12

Spreading normal working time over 5 days or fewer allows the daily limit to be set up to 9 hours, without exceeding the company's normal weekly hours (Art. L. 211-18). This is a permitted working arrangement, not overtime.

Axis 2 — Overtime: conditions and limits

Overtime is not a routine organisational tool: it is reserved for exceptional and exhaustively listed cases (perishable goods, annual stocktaking, public interest, etc.) and is subject to a formal procedure (Art. L. 211-23).

Procedure

The employer must notify the ITM or obtain ministerial authorisation depending on the case (Art. L. 211-23)
The staff delegation must be consulted beforehand where one exists

Caps within the overtime framework

Where overtime is authorised, it cannot bring total daily working time above 10 hours (Art. L. 211-26). The absolute 10h/day cap applies to the sum of normal hours plus overtime, not to overtime hours in isolation.

The correct reading is not "2 overtime hours are always permitted per day." The rule is that total working time (normal + overtime) must not exceed 10h/day. Working time arrangements (modulation, work organisation plan) operate under a different framework.

Recovery of lost hours

In the event of force majeure, lost hours may be recovered, but without bringing working time above 10 hours per day and 48 hours per week (Art. L. 211-21).

Axis 3 — Sectoral derogations: conditional regimes, not automatic entitlements

Sectoral derogations are not rights that can be activated at the employer's discretion. Each is subject to cumulative conditions (specific periods, reference period averages, procedures, organisation plans) whose non-compliance makes the derogation unenforceable.

Hotels and restaurants (Horeca)

Extended hours are possible during specific seasonal periods, provided the average over the reference period remains at 40 hours (Art. L. 212-4):

Hours possible	Cumulative conditions
Up to 12h/day and 51h/week	Standard Horeca regime, outside special periods
Up to 54h/week	High-activity periods (Easter, Whitsun)
Up to 60h/week	July–August and year-end holidays only — 40h average over reference period must be maintained

For Horeca businesses with 15 or more employees, these derogations only apply if a Work Organisation Plan (POT) has been established beforehand (Art. L. 212-6). Without a POT, extended hours are unenforceable even if the relevant periods are respected.

Agriculture, viticulture and horticulture

Two levels of derogation exist (Art. L. 216-3), each with its own conditions:

Derogation	Limits	Condition
Reference period derogation	10h/day · 48h/week	Reference period of maximum 6 months — average must remain within normal limits
Temporary derogation (urgent seasonal work)	12h/day · 60h/week	Maximum 6 weeks per year — seasonal nature of the work must be justified

Labour-shortage sectors

Collective agreements notified to the Minister of Labour may derogate from the statutory regime in sectors recognised as facing labour shortages (Art. L. 211-25). This regime is strictly framed:

Requires a specific collective agreement formally notified to the Minister — not directly applicable unilaterally by the employer
Cap: 10h/day and 44h/week
Maximum duration of the derogatory regime: 2 years

This regime does not create a "right to 44h" for any employer in a labour-shortage sector. It requires a collective agreement that has been formally concluded and notified.

Axis 4 — Special organisational arrangements

Part-time: 20% exceedance limit

Unless otherwise provided in the contract, the actual hours worked by a part-time employee may not exceed the daily and weekly normal hours set out in their contract by more than 20% (Art. L. 123-1). This threshold is calculated against the contractual hours, not the statutory hours — it therefore varies from one contract to another.

A part-time employee whose contract provides for 20h/week can work up to 24h/week without automatically triggering a reclassification as full-time. Beyond this, the presumption of full-time employment may apply (see the guide on part-time employment contracts).

Summary table of regimes

Regime	Max. daily	Max. weekly	Main condition
Normal hours	8h	40h	Standard regime (Art. L. 211-5)
Spread over 5 days or fewer	9h	40h	Without exceeding normal weekly hours (Art. L. 211-18)
Absolute cap (non-derogatory sectors)	10h	48h	Includes overtime — uncrossable cap outside special sectors (Art. L. 211-12)
Horeca (standard period)	12h	51h	Subject to POT (≥15 emp.) and 40h average (Art. L. 212-4)
Horeca (peak season)	12h	60h	July–Aug / holidays only + POT + 40h average over reference period
Agriculture (reference period)	10h	48h	Reference period ≤ 6 months (Art. L. 216-3)
Agriculture (urgent work)	12h	60h	Max. 6 weeks/year — seasonal work justified (Art. L. 216-3)
Labour-shortage sector (CBA)	10h	44h	Collective agreement notified to the Minister — max. 2 years (Art. L. 211-25)

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The information in this guide is provided for informational purposes only and does not constitute legal advice. It may contain inaccuracies or may not reflect the latest legislative or case-law developments. For any specific situation, please consult a qualified legal professional.