'Years' in the Bible

Then after three years I went up to Jerusalem to see Peter, and abode with him fifteen days.

Then fourteen years after I went up again to Jerusalem with Barnabas, and took Titus with me also.

And this I say, that the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot disannul, that it should make the promise of none effect.

Ye observe days, and months, and times, and years.