Instig8ed the bohemia updated the dayz and the items currently don't spawn on the server restart, today the items remain on the map basically :
86400 seconds & 172800 seconds (24h & 72h) .
See here : Loot despawn
But having a private server you can make the changes about it .
The file responsible for the items and her lifetime's is types.xml
Tutorial here: How To Customize Your Types.xml File
Thanks for the reply! This makes so much more sense now. So basically I have to just wait out the clock to see new items at areas, correct? Does my distance from the area make a difference? For instance, if I have a camp just outside of a town, will the items still respawn after the countdown or will the count be paused because we are close to the area?