Let us now investigate if Te Piringa Aniva has a place in Tahua, and if so where.

The formula which has worked so well for the 2nd half of the cycle is to let two glyphs stand for a day and let the counting begin from Ab8-44. Neither of these assumptions necessarily applies to the 1st half of the cycle. 2 has been used in rongorongo texts to indicate the 2nd half of a cycle and we know that in order to count to Hanga Te Pau we use one glyph per day (and begin with Ab8-83).

As observed in K the measure for the sun stations could be 26.5 instead of 29.5, and several different measures (both relating to sun and to moon) presumably were used.

So, what do we have? We have guesses: One glyph per day and start counting from Ab8-83. Count 26.5 days for each sun station, and let Te Piringa Aniva be the 6th station (begin counting at Nga Kope Ririva):

6 * 26.5 = 159. The long text lines in Tahua makes the 159th glyph arrive already at Aa2-68:

 

Aa2-59	Aa2-60	Aa2-61	Aa2-62	Aa2-63
Aa2-64	Aa2-65	Aa2-66	Aa2-67	Aa2-68 (159)

In the preceding Aa2-67 we have earlier thought the right part is indicating two lying down sun eyes - meaning solstice. The 2nd solstice could be summer solstice. In K glyph number *161 indicates a special dark time, and so does (the unique) Aa2-67:

 

27
	Kb4-1 (*154)	Kb4-2	Kb4-3	Kb4-4	Kb4-5
28
	Kb4-6 (*159)	Kb4-7	Kb4-8	Kb4-9

Curiosity then asks a question: Is there another point in the text of Tahua, which we can count to by using 29.5 (instead of 26.5) and start at Ab8-44 (instead of at Ab8-83)?

Using the moon pattern - moving withershins during the 1st half of the sun cycle - we can begin at Hatinga Te Kohe:

Aa8-67	Aa8-68	Aa8-69	Aa8-70	Aa8-71	Aa8-72
Aa8-73	Aa8-74	Aa8-75	Aa8-76	Aa8-77	Aa8-78	Aa8-79
Aa8-80	Aa8-81	Aa8-82 (708)	Aa8-83	Aa8-84	Aa8-85

708 = 12 * 29.5 and at half 708 (= 354 glyphs = 177 days) there ought to be another kuhane station. If the G logic has been used also in Tahua, it should be Nga Kope Ririva rather than Te Piringa Aniva (we notice the '-iva' as in Hiva). 6 stations earlier than Hatinga Te Kohe will first lead us to Te Kioe Uri. But then we must turn the order around and let Te Kioe Uri change place with Nga Kope Ririva. Because that was the rule in G:

1. Nga Kope Ririva		9. Hua Reva
	Ga7-8 (177)		Gb3-5 (295)
3. Te Poko Uri		11. Hatinga Te Kohe
	Ga5-8 (118)		Gb5-1 (354)
5. Te Kioe Uri		13. Tama
	Ga2-29 (59)		Gb7-3 (413)
7. Te Pei		15. Hanga Takaure
	Gb1-7 (236)		Ga1-1 (472)

354 - 41 (end of side b) = 313 (close to 100π).

 The searched for glyph is Aa4-62 and it certainly seems to be a cardinal point:

Aa4-55	Aa4-56	Aa4-57	Aa4-58	Aa4-59	Aa4-60
Aa4-61	Aa4-62 (354)	Aa4-63	Aa4-64	Aa4-65	Aa4-66
Aa4-67	Aa4-68	Aa4-69	Aa4-70	Aa4-71	Aa4-72 (364)

Aa4-72 (364) illustrates a break in time, could it indicate Nga Kope Ririva? Earlier discussions have suggested (at vae kore in the glyph dictionary) a connection with the 364-day year:

The break between the left and right parts of Aa4-72 confirms the interpretation of Aa4-71 as the 364th day of the year: Aa4-70 Aa4-71 Aa4-72 Aa4-73 Aa4-74 363 364 365 366 367 Hanga Te Pau ought then to be at Aa4-73, and the little bulb at bottom right could mean pau, while the general bent form possibly alludes to haga rave. We can compare with G: Gb5-12 haga rave inverted haga rave Aa4-73 We should notice the possible connection between Aa4-73 and the likewise with 6 'feathers' adorned Aa8-31: 290 Aa4-72 Aa4-73 Aa8-30 Aa8-31 365 366 657 658 In Aa8-31 the hua sign is up, in Aa4-73 down. In Aa8-31 it is drawn as the sail (Raá) of a moon crescent canoe, in Aa4-73 it is drawn - it can be imagined - as if it was the anchor stone at Hanga Te Pau (the 'rest in peace' bay for the 365-day long sun year).

But then one glyph was regarded as one day, and it was not the kuhane double-glyph measure which was used. Furthermore, the distance from Aa4-73 to Aa8-31 is 4 * 73 = 292 glyphs. Two signs saying 4 and 73 should not be missed. A 'quadrangular earth' measured  by 73 must refer to 365, the sun and not the moon.

The number of glyhs in K is estimated to have been 192 (100 less than 292).