The 3 glyphs in period 'zero', before the regular calendar parts
in G and K, correspond to glyphs located in the last (24th)
period of the calendar in E:
0
1
etc
Ga2-24
Ga2-25
Ga2-26
Ga2-27
Ga2-28
0
1
Ka3-12
Ka3-13
Ka3-14
Ka3-15
Ka3-16
24
24
Eb6-1
Eb6-2
Eb6-3
Eb6-4
Eb6-5
The
first 6 periods in E refer to the 1st quarter of the
year (between midwinter and spring).