You could also just make a dir at 0:00, and look at the timestamp on it. (or any other time if you have some basic math knowledge
)
Then youll know the utc time @ 0:00.
Put scheduler to that.
Iozs uses localtime so +0 offset would work just fine.
It really aint that hard :/
And if it still makes wrong dirs, maybe make a crappy newday site command so you can try it using that site command.
Either way its quite easy so dunno why ya cant get it to run yourself.