It doesn't. Day on one end is night on the other, they never join. Unless you're in either the south or north poles, where either day or night never comes, respectively. Unless the question is a riddle, in which case I have no idea. ^^
Day and night are of equal length throughout the year at the equator.
An equal day and night occurs twice per year on the summer and winter equinox.
no, day is actually longer
Yes, during an equinox the length of the day and the length of the night are actually the same.
During the Autumn equinox the length of the day and night are nearly equal. The length of the day on the equinox is approximately twelve hours.
Saturday
Equinox
yes
equal day and night
The length of day and night is equal at the Vernal and Autumnal equinox.
The length of day and night is equal at the Vernal and Autumnal equinox.
In Sanskrit, "vishu" typically refers to the equinox, where day and night are of equal length. It is also associated with the Hindu festival of Vishu, celebrated in Kerala, India to mark the new year.