Corrected entry: Right before we meet Ray, Tiana says, "There's no way I'm kissing a frog and eating a bug in the same night". Tiana and Naveen actually kissed last night. The sun rises during the "When We're Human" musical number, so this is the next day.
Brad
22nd Jan 2010
Correction: Charlotte complained during the masquerade ball that she was nervous because Naveen had not arrived yet and Tiana mentioned that there where still a few stragglers. It's very possible that this took place after midnight (as many balls do last well into the night) and Tiana and Naveen kissed in the early morning hours, which would make her statement about not wanting to do both of those things on the same day correct.
Shannon Jackson