27		6		20		20		6
Ya1-3 (1)		Yb2-3 (29)		Yc1-3 (36)		Yc3-7 (57)		Yb3-2 (78)
56						28
84 = 4 * 14

We can keep the guess of a reversed vaha kai meaning 'birth', given that we assume 'death' to arrive after 'birth':

Yb3-1	Yb3-2	Yb3-3	Yb3-4	Yb3-5	Yb3-6
'birth'

Ya1-1	Ya1-2	Ya1-3	Ya1-4	Ya1-5
'death'

If the Maya thought along similar lines, we can also guess that the 60 'barred' days at the beginning of their calendar refers to the time beyond 'birth' of the new sacred year, a time when the old agricultural year still lingers on:

1 Pop	2 Uo	3 Zip
3 * 20 = 60 days