Dear Tiannan,
You understood well, I confirm that the deadline of lab6 is on Wednesday, 5 January 2022, 23:55.
This lab is designed to be done in one week, but as it is written in Section 1.2 in pdf and in lab quizzes ("This quiz will close on Wednesday, 5 January 2022, 23:55"), we extended the deadline of lab6 until Wednesday, 5 January 2022, 23:55.
Best regards,
Stéphan.