Hora Atual em Aso, Japão — JST.

Mount Aso or Aso Volcano is the second largest active volcano in Japan after Mount Fuji, and among the largest in the world. Common use relates often only to the somma volcano in the centre of Aso Caldera. It stands in Aso Kujū National Park in Kumamoto Prefecture, on the island of Kyushu. Its tallest peak, Takadake, is 1,592 meters (5,223 ft) above sea level. Mount Aso is in a fairly large caldera with a circumference of around 120 km (75 mi), although sources vary on the exact distance. It is one of the 100 Famous Japanese Mountains.

Distance-wise, Aso is closest to Tokyo (~844 km), Singapore (~4,520 km), Dubai (~7,262 km); São Paulo is the far end at roughly 18,948 km. That ordering matters more than the timezone label for travel planning.

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

Around Aso, the nearest mapped reference cities are Ōzu (20 km), Kikuchi (25 km), Okino (28 km), Kōshi (29 km); treat them as the de-facto regional cluster for JST planning.

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

Closest curated airport references from Aso: KMJ Kumamoto (24 km), HSG Saga (76 km), FUK Fukuoka (93 km).