Why is it some ghost sightings only happen on a certain date?

Question

Why is it some ghost sightings only happen on a certain date?

Answer 1

I think you might be on to something.  Why only certian situations, with certain types of people present?

Why?  Nobody knows.

Answer 2

Those kind of hauntings are called residual.

Answer 3

ghost dont like crashing houses/other mysterious places on random days. they prefer to visit someone on the day at a place that a ghost has already been at, and sometimes they like to visit someone more than once. if a house or place is haunted, then they often lurk on the very same date that they first visited the house

Answer 4

Some hauntings are caused by traumatic deaths and on the anniversary dates of those deaths the energy level is high and the ghosts relive this traumatic experience. Battle fields are known to have more ghost sightings on the dat of the battle then any other time.

Answer 5

You mean like on anniversaries of a death or other major life event?  Perhaps it is because the persons aware of the anniversary have a heightened sense of expectation of seeing ghosts on that date, and are more likely to go looking for mysterious sights or sounds.