'Opportune Time' in the Bible
Ask your young men and they will tell you. Therefore let my young men find favor in your sight [and be well-treated], for we have come on a good (festive) day. Please, give whatever you find at hand to your servants and to your son David.’”
But as for me, my prayer is to You, O Lord, at an acceptable and opportune time;O God, in the greatness of Your favor and in the abundance of Your lovingkindness,Answer me with truth [that is, the faithfulness of Your salvation].
But an opportune time [finally] came [for Herodias]. Herod on his birthday gave a banquet for his officials (nobles, courtiers) and military commanders and the leading men of Galilee.
They were glad when they heard this, and promised to give him money. And he began seeking how to betray Him at an opportune time.
Opportune Timenot in Youngs Literal Translation