'Seventh Year' in the Bible

And Zimri went in and struck him down, and killed him, in the twenty and seventh year of Asa king of Judah, and reigned in his place.

In the twenty and seventh year of Asa king of Judah did Zimri reign seven days in Tirzah. And the people were encamped against Gibbethon, which belonged to the Philistines.