The sun and the clock in Sapporo (2026)
Sapporo lies at 141.4°E. Its time zone, UTC+9, is built around the 135°E meridian. The 6.4° gap between them means the clock runs roughly 25 minutes behind the sun: solar noon arrives at about 11:35 rather than 12:00. The zone holds UTC+9 all year — there is no daylight saving here.
The longest day of 2026 is 22 June, with 15h 22m of daylight. The shortest is 22 December, with 9h. The swing between them is 6h 23m. This is the latitude band where the difference between summer and winter evenings is most obvious.
The earliest sunrise and the latest sunset do not land on the longest day. In Sapporo the sun comes up earliest on 16 June at 03:54, while the latest sunset waits until 28 June at 19:18. 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 Sapporo that civil twilight runs about 28 minutes at the equinox, stretching to 35 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.
