I'm now thinking the Biblical Day does begin at Sunrise

I wrote my post arguing agaisnt the Lunar Calendar assuming Biblical days begin and end at Sunset, but I'm now addressing that question.

I discovered some websites like these.

http://www.isawthelightministries.com/daystarts.html

https://www.bibletimemarkers.com/a-day-begins-at-sunrise

I am not at this time endorsing anything else on those sites.  But the first one I notice does support a Rapture view similar to mine in being at the 7th Trumpet and before the Bowls.  That site however is still assuming a Lunar Calendar for determining the Months, which I am now highly skeptical of.  I also probably do not agree with their Passion Week chronology.

Both argue that during the Creation Week, the Day is when God does the work, and at the end of each day it describes the times of Sunset and Sunrise (evening and morning) following.  The first act of Creation is the creation of Light, which thematically supports the day beginning at Sunrise.  Then in Genesis 1:5, 15-16 and 18 the Day is listed before the Night.  Like many other times later on when referring to "forty days and forty nights" or "three days and three nights", in fact almost any time you see "nights" plural, and there are 27 verses that refer to "day and night".  Also the Sun is always listed before the moon in verses like Genesis 37:9, Deuteronomy 4:19. 17:3 and 33:14.  And in Numbers 28 the daily sacrifices are listed as morning first then evening.

In Leviticus 23 a few things make more sense when you remove the Sunset to Sunset based assumptions.  And this is the most important chapter to understanding the Torah Calendar.

What's said about the 14th of Nisan and Passover when compared to Exodus 12 and other Passover passages is a lot less confusing if the days begin and end at sunrise, since then the evening is the middle of the day.  

But the Yom Kippur instructions are what's really revealing.  The Day of Atonement is the Tenth day of the Seventh Month, that was determined already back in chapter 16.  But in verse 32 the Ninth Day is mentioned for some reason.  What the verse seems to be saying is this 24 hour period that functions like a Sabbath begins at the Sunset of the 9th and ends the next Sunset.  The emphasis on that here clearly implying that's not when actual calendar days begin and end, doing it that way here is a special occasion.

I have argued in the past agaisnt viewing Yom Kippur as a Fast day.  But this understanding of verse 32 can negate my main argument, since it can allow the Fast to be from Sunset of the 9th to the Sunset of the 10th so that in the Evening of the 10th you eat the meat of Sacrificed Animals, similar to how the 14th as Passover works in this model.

Likewise is Exodus 12:18, everywhere else the Seven Days of Unleavened Bread are 15-21 of the first month, but in this passage it includes the Evening of the 14th making it consist of 8 evenings.  

This also explains how confused the Rabbinic Jewish observance of Passover is.  While Deuteronomy 16 and Ezekiel 45 provide Hebrew Bible precedent for expanding the use of the word Passover to cover the entire seven day Feast of Unleavened Bread, the change to a Sunset based observance causing the Evening of the 14th to become the Evening of the 15th explains why Rabbinic observance basically forgets that the 14th is Passover.  

Rabbinic tradition does call the 14th the Fast of the Firstborn.  Originally that was clearly tied to the 14th being the day the Egyptian First Born were killed and Israel's spared, but that is supposed to be happening during the Seder so the Sunset based reckoning now has that happening on the 15th so why the 14th is called the Fast of the Firstborn is something the Rabbis struggle to explain.

Speaking of Rabbinic tradition, Fasts are still traditionally supposed to begin at Sunrise, so that sounds like a carry over from the original reckoning.

1 Samuel 30:17 also arguably makes more sense on a Sunrise to Sunrise calendar.

It also mirrors the Torah year better.  Biblically the year begins in Spring, and Dawn is essentially the Spring of the day, hence Sunrise sometimes being refereed to as "dayspring".

Malachi says Jesus is the Sun of Righteousness, and the Fourth Gospel says He is the Light, and Peter calls Him the Lightbearer, there is also the Womb of the Morning reference in Psalm 110.  Revelation says Jesus is the Beginning and the End, the First and the Last, the Alpha and the Omega.  So the day beginning and ending with Sunrise fits that typological pattern.

Which then leads to overlooked details of the Passion narrative.  Matthew 27:57 and Mark 15:42 depict the evening following the Crucifixion as still the day before The Sabbath.  And John 20:19 depicts the Evening following when Jesus had Risen and been seen Risen as still the First Day of The Week.