Galapagos, Ecuador · UTC-6 ☆

The Galapagos Islands, Ecuador’s Pacific archipelago 1,000 kilometers offshore, run on UTC-6 year-round under Pacific/Galapagos. This puts them one hour behind mainland Ecuador, which uses UTC-5 (under America/Guayaquil). No daylight saving is observed. The Galapagos’s separate timezone reflects their longitude: they sit about 15 degrees west of the mainland, and UTC-6 is a better solar fit than UTC-5.

Darwin’s islands, one hour behind the mainland

The islands are famous for Charles Darwin’s 1835 visit and the evolutionary observations he made there, published in On the Origin of Species in 1859. Darwin’s finches, marine iguanas, and giant tortoises exist because the islands’ isolation allowed species to evolve without competition from mainland fauna. The same isolation that shaped evolutionary history created the conditions for a separate timezone.

Puerto Ayora on Santa Cruz Island, the main inhabited center, runs on GALT. Scientific researchers at the Charles Darwin Research Station coordinate with institutions in Quito, the US, and Europe across multiple timezone offsets. The daily rhythm of the Galapagos is shaped by the sun (which rises around 6am year-round), the tides (which determine when boats can access certain landing sites), and the tourist schedule (which departs from Ecuador’s mainland on GALT-plus-one). The clock says one thing; the wildlife operates on evolutionary time.

Convert 9am Galapagos time to London

Sources

• IANA Time Zone Database
• Charles Darwin Foundation
• Darwin, Charles. The Voyage of the Beagle. John Murray, 1845.