2 Samuel 2:11

And the number of the days that David hath been king in Hebron, over the house of Judah, is seven years and six months.

1 Kings 2:11

and the days that David hath reigned over Israel are forty years, in Hebron he hath reigned seven years, and in Jerusalem he hath reigned thirty and three years.

2 Samuel 5:4-5

A son of thirty years is David in his being king; forty years he hath reigned;

1 Chronicles 3:4

Six have been borne to him in Hebron, and he reigneth there seven years and six months, and thirty and three years he hath reigned in Jerusalem.

1 Chronicles 29:27

and the days that he hath reigned over Israel are forty years; in Hebron he reigned seven years, and in Jerusalem he reigned thirty and three;

Treasury of Scripture Knowledge

Summary

And the time that David was king in Hebron over the house of Judah was seven years and six months.

Bible References

Time

2 Samuel 5:4
A son of thirty years is David in his being king; forty years he hath reigned;
1 Kings 2:11
and the days that David hath reigned over Israel are forty years, in Hebron he hath reigned seven years, and in Jerusalem he hath reigned thirty and three years.
1 Chronicles 3:4
Six have been borne to him in Hebron, and he reigneth there seven years and six months, and thirty and three years he hath reigned in Jerusalem.
1 Chronicles 29:27
and the days that he hath reigned over Israel are forty years; in Hebron he reigned seven years, and in Jerusalem he reigned thirty and three;