add_lt_working_days

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Use this when you need a deterministic Lithuania working-day offset. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when lithuania 2026 Labour Code holiday facts with explicit mon_fri_planning or mon_sat_planning. Sixteen full-day statutory holidays; pre-holiday one-hour rules do not create additional rest. No weekend substitution or bridge is inferred. Required work_schedule selects a planning calendar, not a universal personal roster. Actual hours, pay, shifts, local/employer/sector/school/bank schedules, religious personal leave, legal deadlines and future years are not computed. What it computes: Adds or subtracts working dates in the explicitly selected Lithuania 2026 five-day or six-day planning workweek. Sixteen statutory holidays; conditional one-hour eve markers never add full-day rest. Example user requests: Add or subtract Lithuania working days around Restoration of the State is a statutory holiday. | Add or subtract Lithuania working days around August 14 shortening is not full-day rest. | Add or subtract Lithuania working days around Good Friday is not an Article 123 rest day. | Add or subtract Lithuania working days around Easter eve depends on selected workweek. Inputs: start_date (date); working_days (integer); work_schedule (enum). Complete JSON argument examples: {"start_date":"2026-01-01","working_days":0,"work_schedule":"mon_fri_planning"} | {"start_date":"2026-01-01","working_days":0,"work_schedule":"mon_sat_planning"} Outputs: start_date, result_date, working_days_added, calendar_days_elapsed, public_holidays_skipped, territory, territory_name, day_type, holiday_names, holiday_kinds, holiday_details, calendar_scope, holiday_policy, substitute_day_policy, calendar_profile, dataset_version, sources, work_schedule, is_statutory_holiday, is_preholiday_rule_date, is_shortened_workday, statutory_shortening_hours, shortening_scope, working_hours_scope, personal_roster_scope, payroll_scope. Formula: planning_workday = day in selected workweek AND no statutory_holiday_rest; shortened work dates count once Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/lithuania-public-add-working-days with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/lithuania-public-add-working-days.md