S.C. Code Ann. § 33-31-123: Effective date of document.

(a) Except as provided in subsection (b), a document is effective:

(1) at the time of filing on the date it is filed, as evidenced by the Secretary of State's endorsement on the original document; or

(2) at the time specified in the document as its effective time on the date it is filed.

(b) A document may specify a delayed effective time and date and if it does so the document becomes effective at the time and date specified. If a delayed effective date but no time is specified, the document is effective at the close of business on that date. A delayed effective date for a document may not be later than the ninetieth day after the date filed.