80th parallel north

At this latitude the sun is visible for 24 hours, 0 minutes during the summer solstice and astronomical twilight during the winter solstice.

This latitude is the boundary between the Arctic and High Arctic zones of Canada's National Topographic System, at which the longitude span of each map sheet doubles as one crosses this latitude going north.

Around the world

Starting at the Prime Meridian and heading eastwards, the parallel 80° north passes through: