the vernal equinox in late April and the autumn equinox in late September
Twice, at the Summer and Winter Solstaces.
That happens twice, at the "equinoxes".
The duration of day and night is equal at the equator twice a year during the equinoxes in March and September. This phenomenon occurs because the Sun is directly above the equator, resulting in 12 hours of daylight and 12 hours of darkness.
The two days of the year when there is exactly 12 hours of night and 12 hours of day are the equinoxes. They occur around the 20th of March and the 23rd of September each year.
3 Twice. On the Autumnal equinox and on the Vernal equinox.
The Equinox (Vernal & Autumnal) There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes. These events are referred to as Equinoxes
An equal day and night occurs twice per year on the summer and winter equinox.
There are two days each year when the day and night are of equal duration, known as the equinoxes. The vernal (spring) equinox occurs around March 21st, marking the beginning of spring in the Northern Hemisphere, while the autumnal equinox occurs around September 22nd, marking the beginning of autumn.
equinox
equinox
The duration of The Night of the Following Day is 1.55 hours.
The duration of Day for Night - film - is 1.92 hours.