Before we can go on to calendar II (and the reversed vaha kai at *Yc1-3) it is necessary to once again look at the first 180 days (as I have interpreted it) of calendar I:

180 days
	Yb3-1	Yb3-2	Yb3-3	Yb3-4	Yb3-5	Yb3-6 (60)
	Ya1-1	Ya1-2	Ya1-3	Ya1-4	Ya1-5	Ya1-6 (120)
	Ya2-1	Ya2-2	Ya2-3	Ya2-4	Ya2-5	Ya2-6 (180)

Moon rules days number 60, 120, and 180. Which is to expected because practical time is regulated by the moon (the tides, woman's cycle etc). The system of double-months is based on the phases of the moon.

But there is something strange here. For instance is there a quartet of growing moon crescents before midsummer. Should we read them as signs of growing sun? In Tahua there is a quartet of hakaturou glyphs (and the same type of glyph is used also in the parallel H/P/Q texts):

Aa1-2 (48)	Aa1-3	Aa1-4
3 * 24 = 72
Aa1-5	Aa1-6	Aa1-7	Aa1-8 (192)
4 * 24 = 96

Moon rules the 'night', not the 'day of spring'. This wake up call should make us notice other odd signs which are difficult to associate with spring. Pure in Ya1-4 is 'square' among the 180 days of what I have in a preliminary way suggested to be spring, because it is at day number 100 in my structure. We can recollect that this day is special. It is a quarter of 400 and it is a day of Saturn also in C we have seen:

waxing sun
36		139
	Ca2-11 (100)		Ca7-9 (240)

Pure is very much like the reverse of vai with 3 'fire flames' (probably meaning spring). Pure is the dead shell from which the occupant has fled.

The kiore at 120 and 180 are obviously well fed, which - we have learned - refers to the waning phase, not to the season of voracious feeding. The henua 'staffs' in front of them are drawn thin and open at the bottom (and not straight at the top but concave), other signs that these glyph may represent something else than spring.

Instead it ought to be a dark season. Possibly what we are reading about is a different kind of spring, for instance spring in Hiva (on the other side of the earth). When Sun moves through the Underworld during half a year, after having disappeared through vaha kai in the west, he should continue travelling across a dark country. The structure of this 'nighttime' journey is not known, and the best way to depict it is to begin by using the well known first phase of Sun's journey during our own spring. This is his first phase after having returned from the Underworld and his first phase after entering the Underworld ought to be similar. But the signs must show darkness rather than light.

There is one more sign we must notice, viz. the odd maitaki glyphs:

Yb3-4 (40)	Ya3-1 (195)	Ya3-6 (220)	Yb1-6 (255)

These are not normal maitaki glyphs, but a strange combination of maitaki and inoino:

maitaki	inoino

A reasonable interpretation is to say that in the Underworld there is no daylight, therefore the normal maitaki sign cannot be used.

Taken all together we remember the twice 21 assessors in the Underworld helping Osiris to judge the souls of the dead in the Hall of Two Truths. These two truths possibly refers to the two phases for the Sun, one with 10 stations à 30 days up in the light where we can see him and another phase where he is invisible and down in the Underworld. His time there ought also to be 300 (though not days but nights). The the total cycle becomes 10 * 60 = 600. Half his time he is in Hiva, half with us who are living.