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Add Czech Republic Working Days

Adds or subtracts Czech Republic authority-scope working days in exact coverage. Requires explicit mon_fri_planning; commemorative events do not create rest.

When to use

You need a deterministic Czech Republic working-day offset.

Do not use when: Czech Republic 2026 statutory rest-day facts over an explicitly selected Monday-Friday planning baseline. This is not a universal legal weekly roster. No shift, individual employer, bank/exchange, school, retail opening, payroll or legal-deadline schedule is computed. Commemorative days do not add rest; no substitute Monday is inferred. Future-year coverage is not asserted.

Example user requests

Add or subtract Czech Republic working days around Two names on January 1, one rest date.
Add or subtract Czech Republic working days around Education commemorative day remains a planning workday.
Add or subtract Czech Republic working days around November 17 is a Czech statutory rest day.

Formula

planning_workday = weekday AND no state_holiday AND no other_holiday

Apply 13 unique 2026 holiday dates under Act 245/2000. Keep commemorative events separate, count January 1 once and never infer substitute dates or personal rosters.

Inputs

Parameter	Type	Required	Description
`start_date`	date	yes	Gregorian start date in 2026-2026.
`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, not a statutory universal 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	CZ (Czech Republic).
`territory_name`	string	Czech Republic
`day_type`	string	state_holiday, other_holiday, weekend_baseline or regular_workday; commemorations alone do not add rest.
`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	Czech Republic 2026 statutory holidays with explicit Monday-Friday planning baseline
`holiday_policy`	string	Act_245_2000_sections_1_2_3_rest_section_4_commemorative
`substitute_day_policy`	string	No automatic substitute Monday inferred
`calendar_profile`	string	czech-public-holidays
`dataset_version`	string	cz-statutory-rest-calendar-2026.1
`sources`	list	Authority and legislation sources.
`work_schedule`	string	Explicit mon_fri_planning baseline.
`is_state_holiday`	boolean	Whether result.date is a section 1 state holiday.
`is_other_holiday`	boolean	Whether result.date is a section 2 other holiday.
`is_statutory_holiday`	boolean	Whether result.date is a statutory holiday under section 1 or 2.
`is_commemorative_day`	boolean	Whether result.date has a section 4 event effective at that occurrence; does not add rest.
`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/czech-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/czech-public-add-working-days (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/czech-public-add-working-days · Markdown: https://tttkmbb.com/everyday/czech-public-add-working-days.md · JSON definition: https://tttkmbb.com/everyday/czech-public-add-working-days.json
MCP: server https://tttkmbb.com/mcp, tool run_calculator with calculator_id="czech-public-add-working-days"
OpenAPI operationId: add_cz_working_days
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

Sources

MPSV: Act 245/2000, consolidated text (official_legislation)
MPSV: days of rest (government_guidance)
Czech MFA London: Czech Public Holidays 2026 (government_date_crosscheck)
Czech Parliament: bill 78, Act 59/2026 (official_legislative_history)
Act 59/2026: published Gazette document, epravo mirror (primary_gazette_document_mirror)

FAQ

Is Monday-Friday a mandatory schedule for everyone?

No. Select mon_fri_planning explicitly. Individual work and rest rosters, night-shift day boundaries and exceptions are not computed.

Do significant commemorative days create extra holidays?

No. Section 4 does not add rest. March 30 Flag Day was added only from May 13, 2026 and is not retroactively included as a 2026 occurrence.

Related calculators

Czech Republic Working Day — Inspect a date and source evidence.