'Months' in the Bible

Then she continued talking with her father, "Do this for me: leave me alone by myself for two months. I'll go up to the mountains and cry there because I'll never marry. My friends and I will go."

So he said, "Go!" He sent her away for two months. She left with her friends and cried there on the mountains because she would never marry.

Later, after the two months were concluded, she returned to her father, and he fulfilled what he had solemnly vowed and she never married. That's how the custom arose in Israel

But his mistress was sexually unfaithful to him, and then she left him to live in her father's home in Bethlehem in the territory of Judah. She had been living there for a period of about four months

However, 600 soldiers ran into the wilderness in the direction of the rock of Rimmon, where they remained as fugitives for four months.