North of the Arctic Circle (66º 30' N), on Sunday 21, there will be full 24 h daylight.
Salekhard, Russia (66º 53') ): the sun barely touches the horizon, and then starts rising again.
Iqaluit, Canada (63º 43' N): daylight for 20h 12m
Anchorage, Alaska (61º 13' N): sunrise at 4:20, sunset at 23:42 , that's 19 h sunlight.
Antarctic Circle (66º 30' S): on Sunday, there is a brief peak of light on the horizon, a few seconds, and the Sun vanishes. More southernly, a long 24 hours night.
City
|
Country
|
Latitude
|
Sunrise
|
Sunset
|
Day Length
|
Greenland
|
77° 29'
|
None
|
None
|
24:00
|
|
Norway
|
69° 40'
|
None
|
None
|
24:00
|
|
Alaska
|
64° 54'
|
02:56
|
00:52
|
21:56
|
|
Alaska
|
61° 09'
|
04:21
|
23:42
|
19:21
|
|
Russia
|
59° 53'
|
04:35
|
23:25
|
18:50
|
An excellent interactive map:
http://time.unitarium.com/events/longest-day.html
Have a nice Solstice !