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Add Luxembourg Working Days

Adds or subtracts Luxembourg authority-scope working days in exact coverage. Requires explicit mon_fri_planning; personal compensatory leave and bank-only closures are not computed.

When to use

You need a deterministic Luxembourg working-day offset.

Do not use when: Luxembourg 2026-2028 statutory holiday dates over an explicitly selected Monday-Friday planning baseline, BEFORE individual annual or compensatory leave. A holiday on a normally non-worked day may produce compensatory leave depending on the employee's schedule, hours and applicable rules; no compensation date or next-Monday closure is assigned here. Bank-only Good Friday/Christmas Eve afternoon, customary or collectively agreed holidays, school/local/employer/shift schedules, hours, payroll, personal entitlements and legal deadlines are not computed.

Example user requests

Add or subtract Luxembourg working days around Europe Day is statutory rest.
Add or subtract Luxembourg working days around No uniform Monday compensation date.
Add or subtract Luxembourg working days around Bank-only Good Friday is not general statutory rest.

Formula

planning_workday = weekday AND no statutory_holiday_rest; individual leave is not deducted

Apply eleven official statutory dates per year to the explicit Monday-Friday planning baseline. No uniform Monday substitute, personal compensatory date or payroll inference.

Inputs

Parameter	Type	Required	Description
`start_date`	date	yes	Gregorian start date in 2026-2028.
`working_days`	integer	yes	Signed offset; start date excluded for non-zero offsets. Range: ≥ -1000, ≤ 1000
`work_schedule`	enum: mon_fri_planning	yes	Required explicit Monday-Friday planning baseline BEFORE individual annual/compensatory leave; not a personal roster.

Outputs

Output	Type	Description
`start_date`	date	Input date.
`result_date`	date	Date reached.
`working_days_added`	integer	Signed requested offset.
`calendar_days_elapsed`	integer	Signed Gregorian difference.
`public_holidays_skipped`	list	Exact events crossed.
`territory`	string	LU (Luxembourg).
`territory_name`	string	Luxembourg
`day_type`	string	statutory_holiday_rest, weekend_baseline or regular_workday.
`holiday_names`	string_list	Events applying on the date.
`holiday_kinds`	string_list	Authority event classifications.
`holiday_details`	list	Structured event details, including partial-day notes where published.
`calendar_scope`	string	Luxembourg 2026-2028 eleven annual statutory holidays with explicit Monday-Friday planning baseline before individualized leave
`holiday_policy`	string	Eleven_L232_2_statutory_holidays_per_year; individualized_compensation_not_computed
`substitute_day_policy`	string	No_uniform_next_Monday_or_compensatory_leave_date_assigned
`calendar_profile`	string	luxembourg-public-holidays
`dataset_version`	string	lu-statutory-calendar-2026-2028.1
`sources`	list	Authority and legislation sources.
`work_schedule`	string	Explicit mon_fri_planning baseline.
`is_statutory_non_working_day`	boolean	Whether result.date is one of eleven annual general statutory holiday dates; not personal attendance.
`holiday_on_baseline_weekend`	boolean	Statutory holiday falls on Saturday/Sunday. Calendar fact only, not an individual compensatory entitlement.
`compensatory_leave_scope`	string	Always not_computed; personal schedule and applicable rules required.
`compensatory_date_policy`	string	Always no_dates_assigned; not a denial of compensatory leave.
`personal_roster_scope`	string	Always not_computed.
`payroll_scope`	string	Always not_computed.

Example

Zero offset is identity: {"start_date":"2026-01-01","working_days":0,"work_schedule":"mon_fri_planning"} → {"result_date":"2026-01-01","working_days_added":0}

GET https://tttkmbb.com/api/v1/calculate/luxembourg-public-add-working-days?start_date=2026-01-01&working_days=0&work_schedule=mon_fri_planning

Machine access

API: GET https://tttkmbb.com/api/v1/calculate/luxembourg-public-add-working-days (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/luxembourg-public-add-working-days · Markdown: https://tttkmbb.com/everyday/luxembourg-public-add-working-days.md · JSON definition: https://tttkmbb.com/everyday/luxembourg-public-add-working-days.json
MCP: server https://tttkmbb.com/mcp, tool run_calculator with calculator_id="luxembourg-public-add-working-days"
OpenAPI operationId: add_lu_working_days
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

Sources

ITM: Jours feries legaux, dated table 2025-2030 (government_calendar)
Luxembourg government portal: Public holidays (government_calendar)
ITM D9a2: Eleven statutory holidays (government_guidance)
ITM D9a4: Holiday on a normally non-worked day (government_guidance)
ITM D9a9: Customary holidays (government_guidance)
Guichet: Working on public holidays (government_guidance)
Official Luxembourg Open Data Portal: Jours feries legaux au Luxembourg (official_open_data_catalog)
Official Luxembourg Open Data: holidays.json snapshot (official_open_dataset)

FAQ

Is the Monday after a weekend holiday automatically off?

No uniform next-Monday date is assigned by this package. Compensatory leave can depend on the person's normal work schedule and must be arranged under applicable rules; this tool neither denies nor computes that entitlement.

Does the annual working-day count include my compensatory leave?

No. It is a Monday-Friday calendar count before personal annual leave, compensatory leave and employer/collective arrangements. Do not use it as actual annual attendance or payroll.

Are Good Friday, All Souls or Christmas Eve statutory days off?

They are not among the eleven general statutory holidays. Bank, collective, customary or employer arrangements may differ and are outside this profile.

What makes the data reproducible?

Pinned official CC0 JSON dates in four languages are cross-checked with the ITM French year table. Source URLs, retrieval times, SHA-256 hashes, coverage and limitations accompany results.

Related calculators

Luxembourg Working Day — Inspect a date and source evidence.