Talks between TikTok and US negotiators will resume even after the deadline passes.
Short-form video app TikTok and the Trump administration had not come to terms over sale of the company's US operations as a deadline loomed, according to a source familiar with the matter.
The Committee on Foreign Investment had given TikTok parent ByteDance, based in China, until midnight to come up with an acceptable deal to put TikTok's American assets into US hands.
Talks between TikTok and government negotiators will continue even after the deadline passes, and people in the US will still be able to use the popular smartphone app for sharing video snippets, the source said.
TikTok and the US Treasury, which oversees the committee on foreign investment, declined to comment.
Influencers sue Trump
The US had already backed off enforcing a ban on TikTok, in compliance with a court order in favour of the Chinese-owned social media sensation.
The White House claims TikTok has links to the Chinese government through its parent firm ByteDance.
TikTok has repeatedly defended itself against allegations of data transfers to the Chinese government.
It says its servers where user information is stored are located in the United States and Singapore.
A US federal judge in late October issued an injunction temporarily blocking an executive order by Trump aimed at banning TikTok, throwing up a legal roadblock.
The judge's ruling hit the brakes on a Trump threat to knock TikTok offline by cutting it off from US businesses providing website hosting, data storage and other fundamentals needed to operate.
But TikTok influencers suing the president over the ban convinced US District Court Wendy Beetlestone to issue the injunction against it.
Trump overstepped his authority?
It was the second restraint issued in favour of TikTok by US judges against a set of executive orders issued by Trump which sought to ban new downloads of the app beginning in September, and ban it outright by mid-November.
A temporary injunction issued in September in a separate suit filed by TikTok itself prevented the government from removing it from mobile application download platforms.
Judges in both cases said in rulings that the chances of proving in court that Trump overstepped his authority were good.
They also equated TikTok to films, photographs, and news wires with legal protections.
The Friday deadline was for ByteDance to come up with a deal to sell TikTok operations in the US.
A tentative deal has been unveiled that would make Silicon Valley giant Oracle the technology partner for TikTok and a stakeholder in a new entity to be known as TikTok Global.