Mississippi Code Title 7. Executive Department § 7-1-1

When it shall be ascertained who is chosen Governor, he shall be installed and the oath of office administered to him by one (1) of the judges of the Supreme Court or, in their absence, by the presiding officer of one (1) of the two (2) houses of the Legislature, in the presence of the two (2) houses. The time of such installation shall be at noon on the Tuesday next after the first day of the legislative session, or as soon thereafter as practicable, unless a different time be fixed by a concurrent resolution of the two (2) houses.