What calendar are you using? Hebrew 360 day year and gregorian calendar is 365. Could change things.
Calendar
The biblical year is not a preset number of days. That is a common and understandable misunderstanding of those who have not studied the Torah. A biblical year is what the sun, moon, and stars declare (Genesis 1:14) (as the Heavenly witness) coupled with the syncing of the aviv (Exodus 23:15) (Earthly witness). In Biblical history, the sun, moon, and stars produced 360 day years regularly, but that changed after the flood and/or during Hezekiah. The Biblical calendar always syncs up with the solar cycle. It must, or the Fall feast will eventually be in the Spring, and the Spring feast will be in the Fall, which are agricultural calendric markers.
There is good evidence in the prophets that the “signs in the heavens” to come will adjust the celestial markers to once again produce a repeating 360 day year and 30 day month.
Some years ago a team of men and women set out to determine the exact date of Yahshua's death. To make this short, we determined that the first day of the year was a conjunction moon that occurred on the same day as the vernal equinox. As a result we learned that his death was on April 5, 0030 of the common era. Same as your understanding. After 51 years of Feast keeping we have come to understand that the eighth day is the greatest day for the sake of rest of the dead that were not qualified (for lack of a better term) for the first resurrection. Revelation 20:5 is messed up in most translations. That's a lot of people, and will likely be another thousand +/- years here on planet Earth. http://bwid.net/lastday.pdf It would be interesting to me to know how you came up with the same date of Messiah's death? As far as 2030 is concerned all we had to go on was Hosea 6:1&2. kudos on all your research. I need to watch the movie a couple more times.
So I am still confused about this 777. How then do you predetermine what the 7th month and the 7th day in 2030 to be? Maybe I am just not understanding.
For many of the Torah observant congregations, the first day of the year must occur on or after the vernal equinox. our group determined that the conjunction (dark) moon on or after the vernal equinox always begins the Feast of Tabernacles in the fall without fail. None of our group can find fault with anything except that some us believe the 8th day is another thousand years. As a matter of fact, today, October 6 was the Last Great Day. Why is it so great? Because the rest of mankind will be raised from the dead. At least anyone that has had the breath of life. The religions are all deceived and the children were mostly ignorant of Yahweh's master plan for humanity. Not many details on the "Last Day".
Enoch explains the year is 364 days. Jubilees agreed. And there is a calendar called Zadokite. The significance of 364 and Zadokite is they respect the necessity to keep the year a multiple of 7. This anchors certain feasts the the proper day of the week.
One thing you can be sure of, the "Hebraic" lunar calendar is wrong, and the modern Roman calendar is also wrong.
But we can reconcile the time with the Word and praying attention to the Sun, Moon and Stars.
I just don't think we should dismiss Enoch's testimony. And recognize the 7 day base unit of the year.