Edit: My question is not a duplicate of following question:How does the admissions process work for Ph.D. programs in Country X? because in answer to this question nobody has answered about the system in France.
I completed my master's in mathematics in June 2020 but couldn't apply in session 2021 due to personal reasons for a PhD in France.
Now, I am studying some topics and this year is my last chance for getting admission for a PhD.
Before what month must I send my CV and e-mail to the professors whom I want to work with so that I can get selected for session 2022?
I would have started sending them by now, but I didn't because I have been busy in doing some old pending work.
I can't miss this chance.