But of the times and the seasons, brethren, ye have no need that I write unto you.
Times, х chronoi (G5555)] - the general term for chronological periods in the great cycle of God's scheme of providence and grace.
Seasons, х kairoi (G2540)] - the opportune times (Daniel 7:12; Acts 1:7). Time denotes quantity; season, quality. Seasons are parts of times. Here, the times and seasons which bring about the grand consummation at the Lord's coming.
Ye have no need - those who watch need not be told when the hour will come, for they are always ready. The Thessalonians 'knew perfectly' х akriboos (G199), 'accurately'], by Paul's having told them, and by the Spirit's teaching (2 Thessalonians 2:5).