3. Considering how all people must have acknowledged the existence of the never descending Big Dipper asterism close to the north pole of the sky dome we can expect much of the ancient structure of time hinges on the nearly vertical line between Dubhe and Merak, which at present is close to the line for 11h:

The front part of Ursa Major is shining weakly ('female') while its back is strong ('male').

Ga4-16 (100) Ga4-17 Ga4-18 Ga4-19 (*167)
ν Hydrae (164.1)     Alkes (166.6), Merak (167.2)
September 1 (244) 2 3 11h = 167.4
Ga4-20 (104) Ga4-21 Ga4-22 (*170) Ga4-23 Ga4-24 (108)
Dubhe (167.7)    Al Sharas (169.7), Zosma (170.2), Coxa (170.4)   Alula (171.5), Labrum (171.6)
5 (248) 6 7 8 9

Merak is rising just before 11h and Dubhe just after. The idea of a time line at 11h seems to have been noted in the G text:

80
Ga4-19 (*167) Ga4-20 (104) Ga7-15 (185) Ga7-16 Ga7-17
September 4 5 (248) 80 November 25 26 27 (331)
11h = 167.4 84
258
Ga4-19 (*167) Ga4-20 (104) Ga4-21 Gb5-10 (364)
11h = 167.4 261

Vaha kai in Gb5-10 is 84 + 177 = 261 glyphs beyond 11h.

Counted from March 21 there are 168 days to Dubhe, 248 - 80 = 168. This key number in the rongorongo texts was evidently used also by the Mayas, we should remember (cfr at The Shepherd):

1820 = 5 * 364.

If we count 168 days ahead we will reach a very special glyph, 104 + 168 = 272:

 
165
Ga4-20 (*168) Gb2-13 Gb2-14 Gb2-15 (**243) Gb2-16 (*336)
168