Shalom,

I recently added a study to this web site which demonstrates from scripture that Yahweh's days are reckoned from evening to evening. See http://www.eliyah.com/sabbathbegin.html

I have also written a rebuttal to a study that claims Yahweh begins His days at sunrise. Contact me if you are interested in reading it.

Shalom & Chesed in Yahushua,

EliYah