Henock 72:11-12 (from the Ethiopian text, numbering by R.H Charles)
11. And the sun rises from that fourth portal, and sets in the fourth and returns to the fifth portal of the east thirty mornings, and rises from it and sets in the fifth portal. 12. And then the day becomes longer by two parts and amounts to eleven parts, and the night becomes shorter and amounts to seven parts.
[2nd month: sunrises & sunsets on the 5th gate
sunrise moving north from east ;
has 30 days;
day = 11 parts
night = 7 parts
14 hours of daylight;
day becomes longer by 2 parts]