There isn't such a cheat, you would need to edit the scenrios in the Scenario Editor to change the opening times as described in the previous post to yours.
Michael
ok, maybe i didnt understand the post prior to mine
are you saying i can open any scenerio that cames in rtc3 and its 2 expansions in a scenerio editor, and change park hours to remove night time?
if so, would it just be for the ability to "play the scenerio" as opposed to beating the scenerio and unlocking the the unlockables?
if not, i suppose i could use cheats to get the official scenerios to unlock everything for access and then just do the scenerios as "custom scenerios"
so i guess what i am asking is, can i edit the scenerios built in the game as custom scenerios to remove the night time modes?
and use the cheats to unlock all the unlockables as a workaround?
thanks for your answer, i am amazed (in a really good way) at how quickly you responded!
thanks !
=D