We count our days from 12 midnight to 12 midnight. I do not see anything wrong with that. However when it comes to being disciples of the Living God who’s rulership is above ours I see obedience to His dictates as more important to follow than man’s dictates. To do other wise is placing man before God.
Just like the rest of God’s law Jesus gave us the Sabbath. He has told us to remember to keep it. Why would the majesty of the universe tell us to remember to keep His law. Is He that particular? The fall over what we as humans seem to think is such a small matter says that He is.
Therefore while we reckon the way we do, God is not held subject to the way we do things. Genesis chapter one verses 5, 8, 13, 19, 23, and verse 31 teach us that God’s days start in the evening, then passes unto the day portion.
Thus the Lord’s Sabbath is kept from sundown Friday to sundown Saturday as the bible teaches.