Noctiphobia is the fear of which of the following?

Night

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Noctiphobia is the fear of the night. The word "nocti" comes from the Latin word for "night". People with noctiphobia may avoid going out at night, or to experience severe anxiety when they are in the dark.

The other options are:

• Day time: heliophobia
• Dark: achluophobia
• Sunlight: heliophobia