opportune

1. ADJ If something happens at an opportune time or is opportune, it happens at the time that is most convenient for someone or most likely to lead to success. 適儅的; 適時的[正式]

I believe that I have arrived at a very opportune moment. 我想我到得正是時候。

The timing of the meetings was opportune. 會議的時間安排得恰到好処。