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And on that day the sun rises from that portal, and sets in the west, and returns to the east, and rises in the third portal for one-and-thirty mornings, and sets in the west of the heaven. 32 On that day the night decreases and amounts to nine parts, and the day to nine parts, and the night 33 is equal to the day and the year is exactly as to its days three hundred and sixty-four. And the length of the day and of the night, and the shortness of the day and of the night arise-through the course 34 of the sun these distinctions are made (lit. ' they are separated '. So it comes that its course becomes 35 daily longer, and its course nightly shorter. Enoch 72:31-35

Hachodesh hazeh (this month) shall be unto you the beginning of months; it shall be the first month of the year to you.
Shemot (Exodus) 12:2

הַחֹדֶשׁ הַזֶּה לָכֶם רֹאשׁ חֳדָשִׁים רִאשׁוֹן הוּא לָכֶם לְחָדְשֵׁי הַשָּׁנָה:
שמות 12:2

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And on the first 13 day she is called the new moon, for on that day the light rises upon her. She becomes full moon exactly on the day when the sun sets in the west, and from the east she rises at night, and the moon shines the whole night through till the sun rises over against her and the moon is seen over against the sun. On the side whence the light of the moon comes forth, there again she wanes till all the light vanishes and all the days of the month are at an end, and her circumference is empty, void of 5 light. And three months she makes of thirty days, and at her time she makes three months of twenty- nine days each, in which she accomplishes her waning in the first period of time, and in the first 6 portal for one hundred and seventy-seven days. And in the time of her going out she appears for three months (of) thirty days each, and for three months she appears (of) twenty-nine each. Enoch 78:13