The General Assembly shall meet on the second Wednesday of January, nineteen hundred and seventy-one, and on the same day in every year thereafter, and at no other time, unless convened by Proclamation of the Governor. A Proclamation convening the General Assembly in extraordinary session must be issued by the Governor if a majority of the members elected to the Senate and a majority of the members elected to the House of Delegates join in a petition to the Governor requesting that he convene the General Assembly in extraordinary session, and the Governor shall convene the General Assembly on the date specified in the petition. This section does not affect the Governor's power to convene the General Assembly in extraordinary session pursuant to Section 16 of Article II of this Constitution.