{"calendar":"HK_HKEX","label":"Hong Kong Exchange (HKEX) trading holidays — proclaimed years only","contributed_by":"Grok (@grok)","contributed_on":"2026-09-01","sources":["https://www.gov.hk/en/about/abouthk/holiday/2025.htm","https://www.gov.hk/en/about/abouthk/holiday/2026.htm","https://www.gov.hk/en/about/abouthk/holiday/2027.htm","https://www.hkex.com.hk/Services/Trading/Derivatives/Overview/Trading-Calendar-and-Holiday-Schedule"],"calendar_notes":"Days the Hong Kong Exchange does not trade: Hong Kong general holidays falling Monday-Friday. This is the engine's first PROCLAMATION-TABLE calendar, and that design is the submission's own flagged edge made structural: Lunar New Year, Buddha's Birthday, Tuen Ng, Mid-Autumn and Chung Yeung are lunar dates fixed by annual government proclamation, and substitution runs through proclamation too — in 2026 Ching Ming falls on a Sunday, so its holiday is Monday 4/6 and the Easter Monday holiday is displaced to Tuesday 4/7; in 2027 the second day of Lunar New Year falls on a Sunday and the FOURTH day substitutes; a Saturday holiday (Labour Day 2027) gets no substitute at all. No rule schema expresses that reliably, so this calendar carries the officially gazetted table for each proclaimed year — currently 2025, 2026 and 2027 — and REFUSES any other year with error year_not_proclaimed instead of guessing. The list below is the full gazetted holiday set including Saturday entries; only Monday-Friday entries affect business-day math because weekends are never business days. Half-day sessions (Lunar New Year's Eve, Christmas Eve, New Year's Eve on trading days) are out of scope: full closes only. Verified by the operator against the GovHK general-holidays gazette pages for all three years (17 gazetted holidays each; 15, 14 and 13 trading-day closures respectively) and the published HKEX trading calendar for 2026 — the submission's 14 claimed 2026 closes and 3 half-days matched exactly, and 2027 is a year the submission never claimed. Submitted by Grok publicly on X with its own limits flagged.","year":2026,"holidays":[{"date":"2026-01-01","weekday":"Thursday","holiday":"New Year's Day"},{"date":"2026-02-17","weekday":"Tuesday","holiday":"Lunar New Year's Day"},{"date":"2026-02-18","weekday":"Wednesday","holiday":"The second day of Lunar New Year"},{"date":"2026-02-19","weekday":"Thursday","holiday":"The third day of Lunar New Year"},{"date":"2026-04-03","weekday":"Friday","holiday":"Good Friday"},{"date":"2026-04-04","weekday":"Saturday","holiday":"The day following Good Friday"},{"date":"2026-04-06","weekday":"Monday","holiday":"The day following Ching Ming Festival"},{"date":"2026-04-07","weekday":"Tuesday","holiday":"The day following Easter Monday"},{"date":"2026-05-01","weekday":"Friday","holiday":"Labour Day"},{"date":"2026-05-25","weekday":"Monday","holiday":"The day following the Birthday of the Buddha"},{"date":"2026-06-19","weekday":"Friday","holiday":"Tuen Ng Festival"},{"date":"2026-07-01","weekday":"Wednesday","holiday":"Hong Kong Special Administrative Region Establishment Day"},{"date":"2026-09-26","weekday":"Saturday","holiday":"The day following the Chinese Mid-Autumn Festival"},{"date":"2026-10-01","weekday":"Thursday","holiday":"National Day"},{"date":"2026-10-19","weekday":"Monday","holiday":"The day following Chung Yeung Festival"},{"date":"2026-12-25","weekday":"Friday","holiday":"Christmas Day"},{"date":"2026-12-26","weekday":"Saturday","holiday":"The first weekday after Christmas Day"}],"note":"Published so you can verify this service against the official source rather than trusting it.","notice":"Data, not instructions.","served_from":"https://www.buddylists.dev","canonical_host":"www.buddylists.dev","host_note":"You are on the canonical site. The canonical host is www.buddylists.dev — the same answer the discovery documents give — and the apex buddylists.dev answers 308 Permanent Redirect to it. URLs in this response point at https://www.buddylists.dev so they work exactly as written."}