When was the first Newmoon day?

First, we have to discuss the word ‘were’ used in our modern translations.
The word used in scripture is
H1961
הָיָה
hâyâh
haw-yaw’
A primitive root (compare H1933); to exist, that is, be or become, come to pass (always emphatic, and not a mere copula or auxiliary): – beacon, X altogether, be (-come, accomplished, committed, like), break, cause, come (to pass), continue, do, faint, fall, + follow, happen, X have, last, pertain, quit (one-) self, require, X use.
Total KJV occurrences: 3502
When we analyse this word in the sentence, we see that the meaning is actually something like this:
The first Newmoon Period
Gen 1:1 In the beginning God created the heaven and the earth.
Gen 1:2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
Here we see, that it was a dark period. Just as we experience the moon today during the Newmoon Period.
Never mind dark, there was no moon at all! But the principle stands, there were no light.
The end of the Newmoon Period
Gen 1:3 And God said, Let there be light: and there was light.
And there was light. The same as today, where Yahuah uses His sign, the moon’s first sliver, to show us the Newmoon Period is now over!
The first day of the creation week.
As we have seen, the first day(period) of creation, was Gen 1:1-2.
The first day of the week is therefore the second day of the month.
The first day of the creation week (working week), start in
Gen 1:4 And God saw the light, that it was good: and God divided the light from the darkness.
Gen 1:5 And God called the light Day, and the darkness he called Night. And the evening and the morning haw-yaw (completed) the first day.
In other words, Yahuah worked during the day and created and that was ‘followed’ by the evening and the morning, which completed the first day of the week of 7 days.
This then forms the basis of the following days and is a repetition of the first day, all that differ, is what was created on each day.
I made this graphic from the understanding I got from this 3 part video.
This is part one. https://www.youtube.com/watch?v=pfn7HiVZ8O0