The sun and the clock in Aracaju (2026)
Aracaju lies at 37.1°W. Its time zone, UTC−3, is built around the 45°W meridian. The 7.9° gap between them means the clock runs roughly 32 minutes behind the sun: solar noon arrives at about 11:28 rather than 12:00. The zone holds UTC−3 all year — there is no daylight saving here.
The longest day of 2026 is 22 December, with 12h 46m of daylight. The shortest is 22 June, with 11h 29m. The swing between them is 1h 17m. 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 Aracaju the sun comes up earliest on 18 November at 04:55, while the latest sunset waits until 27 January at 17:59. 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 Aracaju that civil twilight runs about 21 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.