Sunrise it is.
3 seconds sound clip from the The Green Berets (1968) movie soundboard.
You can hear this line at 01:03:12 in the Blu-ray version of the movie.
Quote context
[...]
- Captain MacDaniel will take a patrol out tomorrow morning and pick them up.
- He says he'll deal with you alone. He'll come with you and you only.
- Tomorrow morning at sunrise, or never.
- Freeze!
- You suppose that old chief is wearing more than one face?
- I don't think so. But we're sure going to respect your hunch.
[...]