証明書の日付変更

Change the text 'Tuesday, September 8 2026' to 'Friday, 16 October 2026'. Change '8 September 2026 to 8 October 2026' to '16 October 2026 to 16 November 2026'. Change the stamp date '08-09-2026' to '16-10-2026'. Keep everything else exactly the same.