How Many Days Make A Month In The Bible

All the chronology in the bible the dates the days months and years are expressed in terms of the biblical lunar calendar.
How many days make a month in the bible. This demonstrates a discrepancy of four days. An intercalary month i e a leap month of 30 days is added for the same reason that leap days are added to our solar calendar to keep up to the exact solar orbit of 365 2422 days in a solar year. This demonstrates a discrepancy of four days. This corroborates the notion of a biblical year and biblical month mentioned in early genesis discussed above.
The time period from the 17thday of the 2ndmonth to the 17thday of the 7thmonth a period of exactly 5 months is 150 days. Please note that the biblical calendar is not the same as our calendar. The year is based on the cycle of the earth round the sun and is approximately 365 and a quarter days long. Because in genesis 7 11 we see the rain started on the 1 7 day of the 2nd month and in genesis 8 3 4 we find the water receded at the end of 150 days then it says the ark rested on the 17th day of the 7th.
Months are alternately 30 and 29 days each see our hebrew jewish calendar. The number of months in a year is therefore not exact and varies between 12 and 13 months. The hebrew word most often translated as month in the tanakh old testament is chodesh h2320 and it is always used when a date is given. This calendar which was used in the day of noah is the same calendar that was used by all ancient civilisations.
God says in ezekiel 4 6 i have appointed thee each day for a year and we also find the bible acknowledges a month to be 30 days long. The only way to equate 42 months and 1 260 days is to recognize that a year is 360 days and that it has 12 months with 30 days per month. Therefore 1290 days is simply 1260 days with an intercalary month added. This implies that a biblical month has 30 days and a biblical year has 360 days.
1 enoch says a year is precisely 364 days and scripture tells us there are 12 months chodesh in a year and infers there are 30 days per month chodesh. We see this first in the genesis account of the flood.