TikTok asked a Washington court Tuesday to stop an order from US President Donald Trump's administration from taking effect this week as the White House seeks to ban the Chinese-owned app in the United States.
Chinese company ByteDance is facing a Thursday deadline to restructure ownership of the app in the United States to meet US security concerns.
In its court petition, TikTok asked for more time, saying it has not received enough feedback on its proposed solution.
The company said in a statement that it had asked the government for a 30-day extension because it was "facing continual new requests and no clarity on whether our proposed solutions would be accepted" but it had not been granted.
TikTok said that with Thursday's "deadline imminent and without an extension in hand, we have no choice but to file a petition in court to defend our rights and those of our more than 1,500 employees in the US."