

It can also be used for a failure or ending, as something fades away into obscurity. When we think of dusk, we typically are referencing twilight fading into night – just before sunset and after civil twilight have passed. Dusk often (but not always) refers to evening twilight. For example, there was a time when very little was known about distant galaxies, so astronomers called them “Twilight Zones.” What does dusk mean?ĭusk is the opposite of dawn, as it is when light has faded to darkness. The term “twilight” also refers to something which is dimly understood or imperfectly known. So even though a corner of a room may be in “darkness” it’s really just in the shadows of another area. Astronomical twilight applies to both stars and planets visible in the sky.Īnother interesting fact about “twilight” is that there actually isn’t any such thing as true darkness! In fact, we can see things as dimly lit as photons striking our retinae (we even have cells specialized for this “dark light,” which absorb it).Nautical twilight refers to illumination that can be seen from a ship at sea this type of horizon-based twilight is considerably longer than the others - so much so that some consider it to begin after sunrise or end before sunset.


When one mentions “dawn” they are referencing the end of night and start of day, while “dusk” is referencing the opposite as twilight becomes night. What’s the difference between dawn and dusk?ĭawn and dusk are two points in time that we have defined and used to determine what time it is.
