Over the first course for the first month was Jashobeam the son of Zabdiel: and in his course were twenty and four thousand. First course for the first month - Instead of mentioning first, second, third, etc., month, the Targum names them thus: First month, Nisan; second, Aiyar; third, Sivan; fourth, Tammuz; fifth, Ab; sixth, Elul; seventh, Tishri; eighth, Marchesvan; ninth, Cisleu; tenth, Tebeth; eleventh, Shebat; twelfth, Adar. No mention is made of a veadar or intercalary month.
Related Commentaries of 1 Chronicles 27:2
1 Chronicles 27:2
2 Over the first course for the first month was Jashobeam the son of Zabdiel: and in his course were twenty and four thousand.