The sun and the clock in Uppsala (2026)
Uppsala lies at 17.6°E. Its time zone, UTC+1, is built around the 15°E meridian. The 2.6° gap between them means the clock runs roughly 11 minutes behind the sun: solar noon arrives at about 11:49 rather than 12:00. Under daylight saving the clocks move 60 minutes forward, widening the gap to 49 minutes and pushing solar noon to 12:49.
The longest day of 2026 is 22 June, with 18h 49m of daylight. The shortest is 22 December, with 5h 55m. The swing between them is 12h 54m. Close to the Arctic or Antarctic circle, the year swings hard between long light and long dark.
The earliest sunrise and the latest sunset do not land on the longest day. In Uppsala the sun comes up earliest on 20 June at 03:26, while the latest sunset waits until 24 June at 22:16. 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 Uppsala that civil twilight runs about 41 minutes at the equinox, stretching to 103 minutes at the solstice.
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.