In the third year of his reign, he made a feast unto all his princes and his servants; the power of Persia and Media, the nobles and princes of the provinces, being before him: When he shewed the riches of his glorious kingdom and the honour of his excellent majesty many days, even an hundred and fourscore days. And when these days were expired, the king made a feast unto all the people... Esther 1:3-5
3 Years followed by 180 days
(30 days in the Hebrew & Persian month) = 1260 days or 42 months.....
Where have you heard that before?
And the woman fled into the wilderness, where she hath a place prepared of God, that they should feed her there a thousand two hundred and threescore days.
Revelation 12:6
And from the time that the daily sacrifice shall be taken away, and the abomination that maketh desolate set up, there shall be a thousand two hundred and ninety days.
Daniel 12:11
And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months.
Revelation 13:5