I don't know, maybe an hour.
3 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 01:31:24 in the DVD version of the movie.
Quote context
[...]
- The papers are on my neck already. What will I tell 'em?
- How about, Drop dead, for an opener?
- I know.
- I don't know, maybe an hour.
- They're crying about morning editions.
[...]