<P> Locations further north than the Arctic Circle and further south than the Antarctic Circle experience no full sunset or sunrise on at least one day of the year, when the polar day or the polar night persists continuously for 24 hours, but full polar night occurs only at a latitude of more than about 72.5 degrees . </P> <P> Sunset creates unique atmospheric conditions such as the often intense orange and red colors of the Sun and the surrounding sky . </P> <P> The time of sunset varies throughout the year, and is determined by the viewer's position on Earth, specified by longitude and latitude, and elevation . Small daily changes and noticeable semi-annual changes in the timing of sunsets are driven by the axial tilt of Earth, daily rotation of the Earth, the planet's movement in its annual elliptical orbit around the Sun, and the Earth and Moon's paired revolutions around each other . During winter and spring, the days get longer and sunsets occur later every day until the day of the latest sunset, which occurs after the summer solstice . In the Northern Hemisphere, the latest sunset occurs late in June or in early July, but not on the summer solstice of June 21 . This date depends on the viewer's latitude (connected with the Earth's slower movement around the aphelion around July 4). Likewise, the earliest sunset does not occur on the winter solstice, but rather about two weeks earlier, again depending on the viewer's latitude . In the Northern Hemisphere, it occurs in early December or late November (influenced by the Earth's faster movement near its perihelion, which occurs around January 3). </P> <P> Likewise, the same phenomenon exists in the Southern Hemisphere, but with the respective dates reversed, with the earliest sunsets occurring some time before June 21 in winter, and latest sunsets occurring some time after December 21 in summer, again depending on one's southern latitude . For a few weeks surrounding both solstices, both sunrise and sunset get slightly later each day . Even on the equator, sunrise and sunset shift several minutes back and forth through the year, along with solar noon . These effects are plotted by an analemma . </P>

Does the sunset at the same time every day