Santiago

Chile • Chile Time

Time Zone

Santiago uses Chile Time (CLT / CLST), currently running at UTC−4 (Mar–Oct) / UTC−3 (Oct–Mar). Chile is in the Southern Hemisphere, so its summer falls October through March. Clocks spring forward in October and fall back in late March, the opposite timing from the Northern Hemisphere.

Business & Commerce

Santiago, Chile's capital, operates on Chile Standard Time (CLT, UTC−4) from March through October and Chile Summer Time (CLST, UTC−3) from October through March — inverted from Northern Hemisphere DST because Chile is in the Southern Hemisphere. This creates a complexity for international scheduling: when Northern Hemisphere cities advance their clocks in spring (March), Santiago is simultaneously falling back from CLST to CLT; when Northern Hemisphere cities fall back in autumn (October/November), Santiago is advancing to CLST. The net result is that the difference between Santiago and cities like New York or London shifts multiple times per year in ways that do not coincide with Northern Hemisphere DST transitions. Chile is the world's largest copper producer, and the Santiago Stock Exchange (Bolsa de Comercio de Santiago) is one of Latin America's larger markets, with metals and mining companies prominent in its listings.