What is the working-days calculator?
This tool counts Hong Kong working days rather than plain calendar days. It has two modes: count the working days between two dates (also showing calendar days, weekend days and the public holidays in the period); or add/subtract a number of working days from a given date. Saturdays, Sundays and Hong Kong public holidays are excluded automatically, which is handy for settlement periods, payment terms, notice periods and deadlines.
General holidays vs statutory holidays
Hong Kong runs two holiday regimes that are easy to confuse:
- General Holidays (the bank/public holidays) — the days banks, government, schools and most offices close. There are 17 in 2025, 2026 and 2027. This calculator uses General Holidays, because they reflect when offices are actually shut.
- Statutory Holidays (labour holidays) — the holidays every employee gets under the Employment Ordinance; a smaller set (15 in 2026, rising to 17 by 2030). These drive annual leave and holiday pay — use theLeave Calculatorfor those.
Common uses
- Contract settlement — e.g. "payment within 14 working days of completion".
- Notice / probation periods — work out the last working day.
- Application deadlines — working days before a tender or government form closes.
- Invoice terms — e.g. the due date for net-30-working-days.
Data source & updates
Public-holiday data comes from the Hong Kong Government's official data.gov.hk / 1823 "Hong Kong Public Holidays" feed and currently covers 2025 to 2027. We refresh it each year. If a calculation runs outside the covered years, the tool only excludes weekends and shows a warning. All calculations happen in your browser — nothing is uploaded.
FAQ
How does the calculator define a 'working day'?
A working day is Monday to Friday, minus Hong Kong public (General) holidays. Saturdays and Sundays are always treated as non-working, based on a typical five-day office week. If your company works Saturdays, treat the result as a guide.
Does it use General holidays or Statutory holidays?
It uses General Holidays (the bank/public holidays), because those are the days offices and banks actually close. Hong Kong has 17 General holidays in 2025, 2026 and 2027. Statutory ('labour') holidays are a smaller subset tied to annual leave and holiday pay — use our Leave Calculator for those.
Which years are covered?
2025 to 2027, sourced from the official data.gov.hk / 1823 public-holiday feed. If your dates fall outside that range the tool only excludes weekends and shows a warning; the holiday part may be inaccurate. We refresh the data yearly.
How does 'add / subtract working days' work?
Starting from your date, it counts forward (or backward) one day at a time, counting only working days, and never counting the start date itself. For example, a Friday plus one working day lands on the following Monday if that Monday is not a holiday.