This seems to be the last 5 days of March:

Hb11-50	Hb11-51	Hb11-52	Hb11-53 (1246)	Hb12-1	Hb12-2
March 27 (86)			March 28 (452)

Hb12-3 (1249)	Hb12-4	Hb12-5
March 29 (88)

Hb12-6	Hb12-7	Hb12-8	Hb12-9	Hb12-10 (1256)	Hb12-11
March 30 (89)			March 31 (455)

Gb7-4	Gb7-5 (416)	Gb7-6	Gb7-7	Gb7-8
March 27	28	29 (453)	30	31

March 29 is evidently of special importance, in G perhaps drawn as Raaraa and in H possibly ending with the exceptional Hb12-5.

The last line on the H tablet carries moko glyphs, 1½ of them in order to make us Count:

Hb12-12 (1258)	Hb12-13	Hb12-14	Hb12-15
125 * 8 = 1000	April 1 (91)

Hb12-16	Hb12-17	Hb12-18 (1264)	Hb12-19	Hb12-20	Hb12-21
April 2 (457)			April 3 (93)

Gb7-9 (420)	Gb7-10	Gb7-11
April 1 (456)	2	3

Evidently there is a jump (leap) where the first quarter of the Gregorian year is ending. 457 = 300 + 157 (= 314 / 2). The curve in front in Hb12-12 is an exceptional haú sign without any 'feathers'. It occurs also once on the Santiago Staff and once on the tablet Honolulu 3629 (T), otherwise not anywhere in the rongorongo texts.