From the point where Josh is getting his hair done up to the point where Drake is laughing at Josh for having his underwear on the wrong way, it's daytime outside. Then, in the next scene, it's nighttime. Then in the next scene, it's daytime again. Then, when the camera shows outside of Mindy's house, it's nighttime again. Lastly, when the cameras are in Mindy's dining room, you can see outside the window it's daytime again.
When Josh is getting ready for dinner at the Crenshaw's, his suit collar is alternately up/down between shots.
When Josh is talking to Mindy at the candy counter, the girl standing next to her disappears in between shots.
Josh's dinner with Mindy's parents is on the same night of Drake and Lucy's fight. Drake could have either rescheduled the fight for the next day or move the fight to Lucy's house.