The sun and the clock in Santiago de Cuba (2026)
Santiago de Cuba lies at 75.8°W. Its time zone, UTC−5, is built around the 75°W meridian. The two very nearly coincide: solar noon — the moment the sun is highest — falls at about 12:03, which is as close to true solar time as a zone this wide can get. Under daylight saving the clocks move 60 minutes forward, widening the gap to 63 minutes and pushing solar noon to 13:03.
The longest day of 2026 is 22 June, with 13h 21m of daylight. The shortest is 22 December, with 10h 55m. The swing between them is 2h 25m. Inside the tropics the day length stays within a narrow band all year.
The earliest sunrise and the latest sunset do not land on the longest day. In Santiago de Cuba the sun comes up earliest on 1 November at 06:04, while the latest sunset waits until 7 July at 19:47. The equation of time is what separates them: the Earth's elliptical orbit and axial tilt move solar noon back and forth by several minutes over the year.
The sky stays usably light for a while after the sun goes down. In Santiago de Cuba that civil twilight runs about 22 minutes at the equinox.
Every figure in this section is computed from the city's own latitude, longitude and IANA time zone using NOAA solar algorithms (Spencer, 1971), accurate to about ±2 arcminutes below 65° latitude.