Several whole minutes at least.
While of course people claiming this is about free speech are lying, it's funny that implicit to their argument is that it's better to be subject to the whims of the Chinese Communist Party than the Woke Libs.
To me the process here is obvious:
1) China says 'we don't like people talking about X'.
2) Musk responds: 'too bad, I am a free speech absolutist'.
3) China says 'ok, well in unrelated news we have to close all Tesla factories in China for the next year or two for safety inspections'.
4) Musk: 'Okay, maybe free speech doesn't include talking about X'.
What does he value more, Tesla or Twitter? I think the answer is pretty clearly Tesla.