And it seems to me there are different wave lengths of thought here.
Kland seems to be talking about "days" as to when do they begin "morning or evening" with focus on the beginning of the Sabbath. As he is dealing with people who think Sabbath begins at dawn.
The thread itself was more about basing the calendar on the phases of the moon and solar equinoxes, etc. to determine God's time table for events.
Gary, at first, seemed to be talking about prophetic time lines -- which are more mathematical calculations rather than solar and moon based.
However, it all kind of dove tails into how to deal with the "new thoughts" entering Adventism that point to the sun and stars and other celestial bodies, to determine God's activities rather than anything we base time on now.
To me -- it all sounds a lot like a softening up to the sun and moon worship that pervaded the ancient world.
Yes, Israel started their months based on the first sighting of the new moon. However, their calendar was based on harvests not on equinoxes etc.
Their FEAST days were fixed to the month. But their Sabbath was every seventh day, there is no indication that the seven day cycle was disrupted at the end of every month like the "lunar calendar promoters" try to persuade us.
The day starts at evening -- according to scripture.
But now we have all kinds of strange ideas coming in to confuse prophecy, to confuse timelines, confuse which day is the Sabbath, confuse us as to when the Sabbath begins.
What is also confusing is how much EGW writings are quoted by these groups, while they ignore the plain English statements from her pen that clearly show she does not agree with them.
At the setting of the sun on the evening of the preparation day the trumpets sounded, signifying that the Sabbath had begun.(DA 774)
...in the evening, at the commencement of the Sabbath, while engaged in prayer, I was shown in vision... LS 231
As the sun goes down [at the close of the Sabbath], let the voice of prayer and the hymn of praise mark the close of the sacred hours and invite God's presence through the cares of the week of labor. {CCh 264.3}