ChristianAnswers.Net WebBible Encyclopedia
Hebrew: shanah, meaning “repetition” or “revolution”
(Gen. 1:14; 5:3)
Among the ancient Egyptians the year consisted of twelve months of thirty days each, with five days added to make it a complete revolution of the Earth round the sun.
The Jews reckoned the year in two ways,
according to a sacred calendar, in which the year began about the time of the vernal equinox, with the month Abib; and…
according to a civil calendar, in which the year began about the time of the autumnal equinox, with the month Nisan.
The month Tisri is now the beginning of the Jewish year.