I have a problem with Pokemon Platinum and Day/Night

Im using the ROM from this site, and an R4U.
Now heres the weird part, night/day work on my old fat DS but not on my DSLite. Is there any patch i can put on the ROM to fix this? i also have the most up to date version for my R4U.

Night and Day are tied to real time on your DS clock, I believe. Can you give a few more details about your time settings on your DS and what times you are playing?

woops i just realized the DS uses a 24 hour clock, now i feel stupid lol