However, if you want a full 12-hour night, you’ll have to wait until the depths of winter.Įven if your definition of night includes twilight, it will not equal the amount of daylight at the equinox due to the Sun not being a point source. ![]() The amount of extra light varies with location, with twilight being much shorter in the tropics than in temperate areas. Sunlight scatters from particles in the upper atmosphere before sunrise and after sunset, still providing a bright environment. One of the biggest misunderstandings of the equinox is that it ignores twilight and thinks that anything that is not day is night, or dark. It is the situation where the day and night are equal. The equinox is defined in Wikipedia as follows: “The equinox (equality of day, equality of day and night, or equinox) is the moment when the circle of enlightenment passes through the poles as a result of the sun’s rays striking the Equator. One obvious reason why this is wrong can be seen in obvious points like the poles, but as points out, the definition also has issues that require more information to spot. This leads to the idea that at equinoxes there is an equal amount of day and night all over the world. The name equinox, meaning “equal night” in Latin, may originally be misunderstood. But the definition of equinoxes is that the equator is facing directly towards the Sun. ![]() Solstices are fairly easy to identify they represent the longest day or night of the year, depending on your hemisphere. Depending on where you are on Earth, yesterday or today is defined as the equinox.
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