Extension review, takes as long as extension review takes.
It can take 3-5 working days and often up to 10 days.
18th Januay 18:49 (moscow time) would be slap bang near the start of Monday for Twitch, and they’ll have the stack of reviews from extensions submitted Sat/Sun to work thru before getting to yours. Assuming they run in order of review.
So you are asking if you can get a “same day review” which is unlikely unless the queue is empty, so a one day review on a Monday, is unlikely.
We are talking Wednesday/Thursday at the latest, in my opinion. But it could take longer.
You’ll also have recieved an email that says something along the lines of the following, when you put your extension into review
Key part here is “Our team will review your Extension and respond with the outcome in an email within the next 3 business days”