The "longest night" on Earth is either at the north pole or at the south pole, where the Sun is up for 6 months and then down for six months. However, nobody lives at the North Pole (except Santa...) while there is a U.S. Navy research station at the South Pole.
For other areas, the length of day and night will vary by your latitude. At the equator, the days and nights are pretty much equal all year long. At higher latitudes, the days are longer in the spring and summer, and shorter in the fall and winter. The shortest day of the year is on the winter solstice, which is December 21 in the northern hemisphere and June 21 in the Southern Hemisphere. (These dates can vary a day either way, depending on the cycle of leap years.)
Night time is seven minutes long
The Night's Too Long was created in 1990.
Long Night of Museums was created in 1997.
The Long Night of the Grave was created in 1986.
Long Night of the Sciences was created in 2000.
No Night Is Too Long was created in 2002.
Tales of a Long Night was created in 1956.
the long night of their captivity
The Long Night of the Grave has 187 pages.
No Night So Long was created in 1980-07.
12 hours of daytime and night time
Yo mama need a long night(: