Won't take but an hour or so. By that time, everything will be quite all right.
5 seconds sound clip from the Miracle on 34th Street (1947) movie soundboard.
You can hear this line at 00:37:54 in the Blu-ray version of the movie.
Quote context
[...]
- You'll take him home to dinner.
- I'll call you as soon as my wife's plast-uh, feeling gay.
- Oh, no.
- Won't take but an hour or so. By that time, everything will be quite all right.
- What sort of games do you play with the other children in the apartment building here?
- I don't play much with them. They play silly games.
- They do?
- Like today, they were in the basement playing zoo, and all of them were animals!
[...]