'Night' in the Bible

So go on back, my daughters! Be on your way! I'm too old to remarry. If I were to say that I'm hoping for a husband tonight and then also bore sons this very night,

In the middle of the night, Boaz was startled awake and turned over in surprise to see a woman lying at his feet.

Tarry this night, and it shall be in the morning, that if he will perform unto thee the part of a kinsman, well; let him do the kinsman's part: but if he will not do the part of a kinsman to thee, then will I do the part of a kinsman to thee, as the LORD liveth: lie down until the morning.