Apparently, in Japan, the witching hour is 2 AM, also known as "in the dead of night" since it's supposedly the farthest from sundown and sunrise. It could also be due to perception, since most people are still up and about around 7-8 PM even in the olden days.
Cute!Scary StoryGehO... Oh~ Is that so.That nightMmm...?Darling! It's so late, what's wrong?Well... I...Darling!Darling, did you know? 2 AM is the hour when ghosts appear.I was thinking we could sleep together tonight...The wife thought that from then on, she should tell ghost stories before going to bed.B-But I'm fine with ghosts? I'm not scared of them or anything.