You have to remember your location in the world. Firstly you do not state where you are and the world rotates. It is always night somewhere as it is always day somewhere. Secondly parts of Alaska stretch so far west they cross the anti-meridian and have an eastern longitude. Thirdly Alaska is way up north and it is winter time, so the days are short if they exist at all.
In Alaska there is 6 months day & night
Alaska
Night time.
in alaska
it will be 9:00 am of the next day in Korea
Usually night.
Day or Night
Yes, you can,but i have to warn you! They stay active day and night!
Because it is not far enough north.
You can say "good night" when it is your day time, if you are talking to a person who is in a country where it is night time. When it is day time in Ireland, it is night time in Australia and New Zealand, and other places.
night
It is night time.