E		G		season
	7		1	summer begins
	18		17	autumn begins
	19		19	vero
	23		32	?

24 periods in E covers 12 months, but 32 periods in G seem to cover only 9 months, 16 periods of which define summer. Reasonably, then, the remaining 16 glyphs should cover winter. Beyond period no. 19 in G we have not yet assembled sufficent data to conclude whether the G calendar ends at winter solstice or at spring equinox. Clearly, however, the summer half of the year (or to be more exact: from spring to autumn equinox) is secure ground. Halfway into the summer we find evidence of a changeover:

GD21 (hua poporo) in Ga4-7 (respectively in the parallel Ka5-4) announces how darknes at that point (summer solstice) overpowers light - light will start to retire. In Ga4-6 we notice the dent as if from a blow at the top of henua (GD37), a sign of the outcome of the battle.