I googled it and it says ‘before sunrise and after sunset’ but I don’t understand how that makes sense because one is AM and the other is PM
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There is twilight both in the morning and at night. In the morning it is between dawn and sunrise and in the evening between sunset and dusk.
It is the period when you receive sunlight that is scattered in the atmosphere but not in direct sunlight because it is below the horizon.
There are three types of twilight: civil, nautical and astronomical.
Civil twilight is when it remains bright enough so you can do daytime activities outside without artificial light like reading a book.
Nautical twilight is when you can still see the horizon, ships will be a silhouette against the brighter sky behind them.
Astronomical twilight is when there is no scattered light that disturbed astronomical observation. This period will be so dark you call it night.
Today Civil Twilight is when the sun is less than 6 degrees below the horizon. Nautical is less than 12 degrees and astronomical is less than 18 degrees. The origin of the definition of what the text above says
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