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.
All of Alaska does not go dark in winter! But the further north you go, the darker it gets. Shortest Day of the Year. On the shortest day of the year (December 21, winter solstice), youâll find a range of daylight hours depending on where you are: Even though residents of Barrow, the northernmost town in Alaska, won't see the sun for 67 days come winter, they enjoy the midnight sun all summer - over 80 days of uninterrupted daylight. Anchorage enjoys a more modest amount of daylight in summer than Barrow - but that's still a good 19 hours between sunrise and sunset on the longest day of the year, Summer Solstice.