- How we calculate this
- The page resolves Antarctica's canonical country slug, filters the city catalog to indexable city rows for this locale, samples each city through its IANA timezone, and derives holiday, airport, currency, and reference-market signals from local catalogs.
- Data sources
- Curated country, city, timezone, holiday, airport, currency, and country-enrichment snapshots stored in the repository. Live-looking clock values are computed at render time from IANA zone IDs rather than hand-coded offsets.
- Update cadence
- Country time hubs revalidate daily. Currency, holiday, airport, and enrichment snapshots update when their source data files are refreshed; current clock labels update on each render.