J$.$D$.$ formed Clampett, Incorporated, as a C corporation $($calendar tax year$)$ with J$.$D$.,$ Granny, and Jethro, Incorporated $($a C corporation$)$ as shareholders. On January $15,2024,$ Jethro, Incorporated, sold all its shares to Jane Hathaway. On February $28,2024,$ Clampett, Incorporated, filed an S corporation election, with J$.$D$.,$ Granny, and Jane all consenting to the election. What is the earliest effective date of the S election?