Actually there is no "cover up". There are two primary "new years" on the Hebrew calendar.
Nissan is the Religious new year (as seen in Ex. 12:1-2)
These is another civil "New Year" Six months later at the month of Tishre.
This is evidenced in the Torah as the Sabbath years are counted from Sukkot to Sukkot:
10 And Moshe commanded them saying, At the end of every seven years, in the set time
of the year of release, in the feast of Sukkot,
11 When all Yisra’el is come to appear before YHWH your Elohim, in the place which
He shall choose, you shall read this Torah before all Yisra’el in their hearing.
12 Assemble the people--the men and the women and the little ones, and your stranger
that is within your gates--that they may hear, and that they may learn, and fear YHWH
your Elohim, and observe to do all the words of this Torah.
13 And that their children who have not known, may hear: and learn to fear YHWH your
Elohim, as long as you live in the land, where you go over the Yarden to possess it.
(Deuteronomy 31:10-13 HRV)
The Hebrews saw the Year as a cycle as do we, but where as we see the circle as having a single beginning an end, the Hebrews saw the year as bisected with each end of the circle being an end/beginning.
Shalom James - Thank you - Dt.31:10 is a consideration - 2 points; 1] If you will notice Moses wrote At the end of every seven years not at the end of every year. 2] in the feast of Sukkot not in Yom Teruah. Sukkot is the 15th of the 7th month. Which renders a Rosh haShana (Head of the [yearly] Year) the 1st of the 7th month a yearly inaccurate lie - a coverup of the true yearly Rosh Ha Shana of Ex.12 :2
Another point is - Nissan is the Babylonian fertility goddess name retained by the exiled House of Judah. On a CD Bible search Nissan will never take you to Torah.
Ex 12:2 This month (Abib/Aviv) shall be unto you the beginning <rosh> of months: it shall be the first month of the year <shana> to you. (of the year - the yearly year)
This is the only place in Torah this verbiage appears - and is the true Rosh Ha Shana.
You will not find the Hebrew verbiage <rosh><shana> at either Lev.23:24 or Dt.31:10