Daily sunrise and sunset schedule

Sunrise and sunset time: sunrise before 6 o'clock in summer and sunset after 18 o'clock; In winter, the sun rises after 6 o'clock and sets before 18 o'clock. Spring and autumn equinox, sunrise at 6 o'clock, sunset 18 o'clock.

Orientation of sunrise and sunset: Except for extreme day and night, when the sun shines directly in the northern hemisphere, the sunrise is northeast and the sunset is northwest. When the direct point of the sun is in the southern hemisphere, it is southeast of sunrise and southwest of sunset. In the spring and autumn equinox, the east rises and the west falls.

Sunrise time = 12 day length; Sunset time = 12+ day length. On the contrary, the length of day and night can be calculated according to the sunrise and sunset time of a certain day in a certain place. The method is: the day length of a place = sunset time-sunrise time = (12 noon-sunrise time) ×2 = (sunset time-12 noon) ×2. The night length of a place = (24: 00 midnight-sunset time) ×2 = (sunrise time-0: 00 midnight )× 2.