6. With day 266 from winter solstice on Easter Island as autumn equinox there are 28 glyphs too few in the G text if we should assume mago in Gb2-10 (glyph 266) to be at autumn equinox:

201 35
Ga1-27 (500) Ga1-28 (**1) Gb2-9 Gb2-10 (**238) Gb2-11 Gb2-12
winter solstice 236 15 September 16 17 18
242

Perhaps the missing 28 days in some way can be compared with the 18 missing days for Alterf in the Arabic manzil system. In order to have 230 days from winter solstice before reaching Alterf (if at Gb1-1) we need to increase 202 with 28. And 472 + 28 = 500 (cfr Ga1-27).

28 is the number of days in February and this month seems traditionally to have been 'cut short' to indicate a break and a new beginning with March:

January 31 31
February 28 59
March 31 90
April 30 120
May 31 151
June 30 181
July 31 212
August 31 243
September 30 273
Oktober 31 304
November 30 334
December 31 365

If we should 'erase' February from our calendar and reduce 365 with its maximum 29 days, the result is 336 days or 48 weeks (and 48 was once the number of constellations). With a solar year counted as 364 days it is not necessary to assume a leap-year, because 364 - 28 = 336.

Gb4-6 Gb4-7 (*392) Gb4-8 Gb4-9 Gb4-10 Gb4-11
Gb4-12 Gb4-13 Gb4-14 (335) Gb4-15 (*400) Gb4-16 Gb4-17 (**310)

Hipu in Gb4-17 is 402 days beyond spring equinox north of the equator, a fact worthy of note.

Winter solstice is on Easter Island at June 21 and if we should decide mago in Gb2-10 to be at September 16, then there cannot be any continuity from side a to side b.

201 35
Ga1-27 (*92) Ga1-28 (**1) Gb2-9 Gb2-10 (**87) Gb2-11 Gb2-12
June 21 22 236 15 September 16 17 18
242

September 16 is day 243 (to the end of August) + 16 = 259 according to our own calendar and June 21 is day 151 (to the end of May) + 21 = 172. Therefore Gb2-10 should be at day 259 - 172 = 87 beyond winter solstice on Easter Island (= spring equinox).

Instead of adjusting the glyph number at Gb2-10 by reducing with 28 we would have to reduce the glyph number with 179 (= 266 - 87), i.e. with the distance in days from spring equinox to autumn equinox (266 - 87 = 179).