a good opportunity has come; the time is ripe
A yojijukugo (four-character idiom) meaning that the right moment for action has arrived. Often used in formal or literary contexts.
The time is ripe for reform.
He was waiting for the right opportunity to come.
Similar yojijukugo meaning 'a golden opportunity has come'; 好機 emphasizes a favorable chance, while 時機 focuses on the right timing.
A common phrase meaning 'the time is ripe'; less formal and more conversational than 時機到来.
A yojijukugo composed of 時機 (opportunity, right time) and 到来 (arrival, coming). The exact historical origin is uncertain, but it follows a common pattern of classical Chinese-derived four-character idioms.