There was exactly 12 months and 30 days at the flood.
One can do the math in the bible.
You were tasked with doing the math with regards to the current 29.5 moon phase, which isn’t 30 days.
The current count is after the 29th Day on His calendar (not your Antichrist’s calendar) one seeks out the new crescent at the end of that day..
If it is seen, Day one of the New Month begins that next morning.
If it isn’t seen, Day 30th, also called new moon, is added, and Day one of the next New Month will begin the Day after the 30th.
That wasn’t needed before the flood.
All months were 30 days.
Anybody who told time using His Sun AND Moon could know what day it was, or at least where one was in His months, by looking at the moon phase.
Full moon- half the month is over.
That has changed. It’s no longer that way.
If the Days of Noah ever return literally, and each month is 30 days again, and 360 days in every year, I have no idea what has to happen to the earth or the moon to make that happen.
That’s a science question.
But what one can know is if they follow Noah’s flood journey, 360 was the year. The math is there.
But the math is also there with New Moon Day,6 work days, Sabbath,or 1+6+1,in the scriptures.
You use a lot of non biblical sources to try to explain away what’s found in His Word and His Creation..
That’s not a winning strategy..
——>One can do the math in the bible.
Both articles I linked did the math. Did you read them?