Ora Attuale a Saikai, Giappone — JST.

This is a list of cities in Japan sorted by prefecture and within prefecture by founding date. The list is also sortable by population, area, density and foundation date. Most large cities in Japan are cities designated by government ordinance. Some regionally important cities are designated as core cities. While the City of Tokyo ceased to exist on July 1, 1943, being replaced by the 23 special wards that make up the eastern part of the special metropolis prefecture Tokyo, it has been included on this list concurrently with the special wards.

Reading Saikai against the global hubs: Tokyo (~963 km), Singapore (~4,434 km), Dubai (~7,135 km) are the close ones, with São Paulo (~18,906 km) sitting on the opposite side of the planet — a good gut check when judging logistics windows.

Saikai sits inside Giappone — the Eastern Asia subregion, capital Tokyo, languages Japanese, currency JPY (¥).

The closest mapped neighbors of Saikai are Sasebo (21 km), Togitsu (23 km), Ōmura (26 km), Obita (27 km), so commuter, logistics and same-day-trip planning will usually pull from this cluster.

Upcoming country holiday signals around Saikai: Shōwa Day, Constitution Memorial Day, Greenery Day. Bake those into launch, on-call, and travel windows for Giappone.

Closest curated airport references from Saikai: NGS Nagasaki (23 km), HSG Saga (61 km), FUK Fukuoka (98 km).