I'll give you a question, please answer with step-by-step reasoning process.
Context: On January 8, 2017, The CW renewed the series for a sixth season, which debuted on October 12, 2017. As of December 7, 2017, 124 episodes of Arrow have aired.\n\nQuestion: when does season 6 of the arrow air?

October 12 , 2017
To answer this question, we should know that: On January 8, 2017, The CW renewed the series for a sixth season, which debuted on October 12, 2017.

.

Final answer: October 12 , 2017