A TikTok sign is displayed on top of their building in Culver City, Calif., on Dec. 3, 2024.AP Photo/Richard Vogel, FileSupreme Court to hear arguments on fate of TikTokTikTok says it plans to shut down the social media platform in the U.S. by Jan. 19 unless the Supreme Court strikes down or otherwise delays the effective date09 Jan 2025, 17:54 by Mark Sherman | Associated Press · 5 NBCDFW