Saturday The last day of the week, and thus the end of a cycle, is both lucky and unlucky in superstition and folklore; some unlucky beliefs pertain to the supernatural. It is a widespread belief that persons born on a Saturday can see Ghosts. In Eastern European lore, such persons are believed to be able to see vampires. In Greek lore as late as the 19th century, Saturday was held to be the proper day for killing Vampires, for it was the only time during the week that vampires slept in their graves or tombs. The body would be taken out and burned. See Ghost SEERS.

The Encyclopedia of Ghosts and Spirits – Written by Rosemary Ellen Guiley  – September 1, 2007