'Month' in the Bible

Now in the sixth month the angel Gabriel was sent from God to a town in Galilee called Nazareth,

And see, your relative Elizabeth--she also has conceived a son in her old age; and this is the sixth month with her who was called barren.

And the four angels who had been kept in readiness for that hour, day, month, and year, were set at liberty, so that they might kill a third part of mankind.

On either side of the river, midway between it and the main street of the city, was the Tree of Life. It produced twelve kinds of fruit, yielding a fresh crop month by month, and the leaves of the tree served as medicine for the nations.