n. 1  1. An inborn pattern of behavior that is characteristic of a species and is often a response to specific environmental stimuli: the spawning instinct in salmon; altruistic instincts in social animals. 2  2. A powerful motivation or impulse. 3  3. An innate capability or aptitude: an instinct for tact and diplomacy.
Daylight Hours: 16 hours, 15 minutes (-6m 51s) The Sun's altitude in Fairbanks today. The horizontal line signifies the horizon, the vertical lines show the times of sunrise and sunset. Altitude and heading are displayed in the box on the right. The graph defaults to current time.
Answers. Best Answer: In Anchorage, about 5.5 hours from sunrise to sunset in December. Useable twilight is another 1 to 1.5 on each end (low-angle sun takes a long time to full set) In June, 19.5 hours. Plus those hours of twilight. So you can read a book outside from 3 am to 1 am. Fairbanks is more extreme by a few hours. Juneau and Ketchikan, etc are between Anchorage and Seattle in both temps and light (but much wetter than either). On March 21 and September 21 (the equinoxes) everywhere is 12 hours daylight and 12 hours twilight+night.