At the end of the movie Funny Face, Audrey Hepburn (Jo) runs off after the fashion show, and Fred Astaire (Dick) goes out to find her. It's about 10:40 at night. When Dick finds Jo at the church, it is magically daytime! This is a huge mistake, and could have been easily avoided by just filming the scene at nighttime!
How do you know what time it is? Think of everything that happened that night--Fred Astaire and Kay Thompson go looking for Audrey, they find her at Professor Flostre's, she shoos them away, Flostre hits on her, she breaks a figurine over his head and leaves, Fred Astaire goes to the airport, they page him a second too late, he finds Flostre and goes back...you know the rest. It probably took hours. I've seen that movie like ten times, and I'm pretty sure you can't tell what time it is.