246			246
Gb8-30		Gb1-18	Gb1-19		Ga1-24	Ga1-25
248 = 8 * 31			248 = 8 * 31

Tao at Ga1-25 probably says this is the maximum length of the calendars in G.

Nga Kope Ririva	Te Pei	Hua Reva	Hatinga Te Kohe
Ga7-7	Gb1-6	Gb3-4	Gb4-33
+ 9	+ 12	+ 15	+ 18
Ga7-16	Gb1-18	Gb3-19	Gb5-18
186 = 6 * 31	248 = 8 * 31	310 = 10 * 31	372 = 12 * 31

Gb1-18 indicates Te Pei is the station where the journey of the sun over the year turns around from waxing to waning.