BETA: Fixing bug with Mithril Mine instance time.
	Reported by: !CostyKiller, u3games
	Patch by: St3eT
	Tested by: !CostyKiller
	Reviewed by: Adry_85, !CostyKiller

git-svn-id: http://svn.l2jdp.com/branches/unstable/L2J_DataPack_BETA@10099 5288da4f-0efc-0310-bd40-8d490a2659fa