Counting from the last viri (Aa8-26) of the text we should notice a vaha kai at position 16 (the number we know is representing the completion of a sequence):

Aa8-26 (0) Aa8-27 Aa8-28 Aa8-29
Aa8-30 Aa8-31 Aa8-32 Aa8-33
Aa8-34 Aa8-35 Aa8-36 Aa8-37
Aa8-38 Aa8-39 Aa8-40 Aa8-41
Aa8-42 (16)

There are 85 glyphs in line Aa8, i.e. 43 glyphs follow beyond vaha kai. 85 - 64 = 21 indicates where we should look for the suggested glyph at the beginning of calendar time:

Aa8-2 Aa8-3 Aa8-4 Aa8-5 Aa8-6 Aa8-7
Aa8-8 Aa8-9
Aa8-10 Aa8-11 Aa8-12 Aa8-13 Aa8-14 Aa8-15
Aa8-16 Aa8-17
Aa8-18 Aa8-19 Aa8-20 Aa8-21 Aa8-22 Aa8-23
Aa8-24 Aa8-25

8 * 21 = 168 and at right of this hanau there is a henua sign. How else could the creator of the text have expressed the birth of the season of spring light? Though this season is still not visible, the following puo glyph (Aa8-22) says so much.

By comparing with Rogo in Gb6-26 - where 26 identifies the glyph corresponding (in a certain sense) to the last viri Aa8-26 - we can identify Gb6-21 as likewise corresponding to Aa8-21:

Gb6-17 Gb6-18 Gb6-19 Gb6-20
Gb6-21 Gb6-22 Gb6-23 Gb6-24
Gb6-25 Gb6-26 (409) Gb6-27 Gb6-28

Gb6-20 (where 6 * 20 = 120) is where time in a sense is ending. The central henua is of the 'midnight' type and 3 hanging 'mata' are on each side.

From the last viri to the end of side a there are 85 - 26 = 59 glyphs, presumably indicating 2 lunar months. In G the same measure possibly begins with moa in Gb7-1 because 471 - 412 = 59:

Gb7-1 (412) Gb7-2 Gb7-3 (414) Gb7-4
Aa8-29 Aa8-30 Aa8-31 Aa8-32

The glyph lines in G are shorter than those of A, and therefore the kava (at left) and hua (with 6 feathers) will coincide with tamaiti, also a kind of little fruit, hua (in Gb7-3).

14 * 29.5 = 413 (Tama) at Gb7-2 is the final of a 'greater fortnight' (7 * 2 = 14) cycle. A new 'fire' must then be born (though according to Aa8-31 still hidden). Maybe we should count 472 - 412 = 59 (leaving the preceding moa to mark from where to count 60).