In the 1800's, medical science wasn't what it is today, and people who were merely in a deep coma were often pronounced dead. When their coffins were dug up ( who knows why....flooding perhaps, or by vandals) they would occasionally find scratch/claw marks on the inside of the coffin lid, indicating that the person had regained consciousness and tried to fight their way out. The practice then became to attach a bell on a long cord to the hand of the supposedly deceased. During the day, the cemetery attendants would listen for bells ringing, but the shift of workers whose sole job was to listen for the bells of the buried but undead, from midnight to dawn, became known as the Graveyard Shift.
I forget the time period but when medical science was starting to make bigger advancements in creating formal education process, knowlege started to advance more rapidly. The growing number of medical students were having a harder time getting bodies to practice on so they began going on cadaver hunts for recently buried bodies. After a while guards were needed at night time to prevent grave robbing. That's why graveyard shift is only at night
The idiom "Graveyard shift" started a long time ago when it was harder to tell if somebody is dead. They would put a rope in the coffin leading up to the surface where there would be a bell. A man, late at night, would come and listen for any ringing bells. They called this the graveyard shift.
The Graveyard Shift - novel - was created in 1965.
The duration of Graveyard Shift - film - is 1.48 hours.
Graveyard Shift - film - was created on 1990-10-26.
The cast of Graveyard Shift - 2009 includes: Alana Bergstrome as Boss
The cast of Graveyard Shift - 2010 includes: Pierce Cravens as Dave
The cast of Graveyard Shift - 2012 includes: Goff Ripoli as Michael
A caregiver who works a graveyard shift.
The cast of Graveyard Shift - 1997 includes: Tabitha Clutterbuck as Herself - Host
The Graveyard Shift - 2013 was released on: USA: 19 January 2013 (Iris Film Festival)
The cast of The Graveyard Shift - 2013 includes: Nathan Erdel Colin Van Wye
Graveyard Shift - 2011 was released on: USA: 27 September 2011 (Splatterfest Horror Film Festival)
Grave yard shift is considered midnight to 8 am. I have worked that shift, but the time can slightly vary.