好機到来
kou.ki.tou.rai

Literally: pleasing – loom / opportunity – arrive – come

Alternately: A golden opportunity arrives. The time is ripe for something good, with perhaps the implication that it’s an unparalleled and therefore unique opportunity.

Notes: Compare and contrast 千載一遇, which is more explicitly about a once-in-a-lifetime opportunity.

Again with the fish! I dunno, man; from the flounder’s point of view this isn’t really a good time. [Source]