From that Israel was OUT, the Divine reckoning according to God's CREATION of days, FIRST the darkness AFTERWARDS the daylight, was valid. So after Israel the previous halve-a-night and all daylight long "GOING OUT OF EGYPT", GOD'S NEW DAY AND NEW ERA after "the end of the 430 years" were full, BEGAN, with its EVENING after sunset. Now it was the FIFTEENTH day of the First Month.
::headscratch:: ::headscratch:: ::headscratch::