Therefore, the 6th day of a Lunar week can fall on any day of the week.
God did not use a thing called a Lunar week.
"The Hebrew week (????, Shavua) is a cycle of seven days,
mirroring the seven-day period of the Book of Genesis in
which the world is created. Each day of the week runs from
sunset to the following sunset and is figured locally.
The weekly cycle, which runs concurrently with
but independently of the monthly and annual cycles.
Hebrew calendar - Wikipedia
The weekly cycle is not locked to the monthly cycle.
The weekly cycle has been ongoing without change since
the garden of Eden, count 6 days plus 1 for the begining.
"There has been no change in our calendar in past centuries that has affected in any way the cycle of the week."—James Robertson, Director American Ephemeris, Navy Department, U.S. Naval Observatory, Washington, D.C., March 12, 1932.
"The human race never lost the septenary [seven day] sequence of week days and that the Sabbath of these latter times comes down to us from Adam, though the ages, without a single lapse."—Dr. Totten, professor of astronomy at Yale University.
"Seven has been the ancient and honored number among the nations of the earth. They have measured their time by weeks from the beginning. The origin of this was the Sabbath of God, as Moses has given the reasons for it in his writings."—Dr. Lyman Coleman.
"By calculating the eclipses, it can be proven that no time has been lost and the creation days were seven, divided into 24 hours each."—Dr. Hinkley, The Watchman, July 1926 [Hinkley was a well-known astronomer].
"It can be said with assurance that not a day has been lost since Creation, and all the calendar changes notwithstanding, there has been no break in the weekly cycle."—Dr. Frank Jeffries, Fellow of the Royal Astronomical Society and Research Director of the Royal Observatory, Greenwich, England.
There is no question about which day
the seventh day of the week is.
x
The Hebrew calendar is designed to ensure that certain holy
days and festivals do not fall on certain days of the week.
Days of week on Hebrew calendar - Wikipedia
God’s calendar months are determined by the moon.
He instructed them to observe holy days on specific
days of the month, while at the same time, during
appointed seasons in the year (Leviticus 23:4).
Gods holy days (as determined by the moon) in
their proper seasons (as determined by the sun).
The Hebrew calendar has been preserved correct by the Jews
Romans 3:1-2. In 31 AD Passover was on a Wednesday.