'Month' in the Bible

Now in the sixth month [of Elizabeth’s pregnancy] the angel Gabriel was sent from God to a city in Galilee called Nazareth,

And listen, even your relative Elizabeth has also conceived a son in her old age; and she who was called barren is now in her sixth month.

So the four angels, who had been prepared for the [appointed] hour and day and month and year, were released to kill a third of mankind.

in the middle of its street. On either side of the river was the tree of life, bearing twelve kinds of fruit, yielding its fruit every month; and the leaves of the tree were for the healing of the nations.