The Demon's Souls servers are officially shut down as of February 2018. For a temporary workaround to access accurate IGTIn-Game Time, please see this Reddit thread!
Fall Control Quitout
The sorcery Fall Control in Dark Souls can be abused to survive almost any drop in the game which would normally only kill you on impact. To perform this, cast Fall Control, take the drop, and Save & Quit just as your character hits the ground. If the timing was correct, your character will load at where your drop quitout was. Note that this only works on solid surfaces, moving platforms like elevators do not save your position and as such you cannot use this glitch on them.
- Examples of places to perform by Hantz on YouTube