At tara these glyphs were used in order to suggest that a 'bent tail' sign could mean a 'curve in time' - where there is a reversal, a point of turning around:

summer
Ka4-14 Ka4-15 *Kb2-15 *Kb2-16

The bent right lines of henua in Ka4-15 respectively *Kb2-15 is a further sign which could not only connect the beginning and end of 'summer', but also illustrate the necessarily curved path encountered when reaching a cardinal point.

There are only 5 + 5 glyph lines on the K tablet, presumably too few in order to describe a whole 12-month year. But 5 + 5 is suitable for illustrating the time of the year when Sun is present. Sun has 10 periods instead of 20 because he is present only during half the year, the other half he is far north. Thus, for example, there are 5 + 5 'feathers' on the head of  gagana in Gb6-16 - 'Father Light' (Jupiter) is an 'incarnation' of Sun:

 
Gb6-16 (399) Gb6-17 (0)

In 6-16 we can count 61 * 6 = 366.

'Summer' in my table above can anyhow refer to the whole of 'summer' (equal to the season when Sun is present). If mago in Ka4-14 represents spring equinox and the 'humpback' figure in *Kb2-16 represents autumn equionx, then the stretch of glyphs between them becomes the season when Sun is 'present' ('summer'):

summer

Ka4-13

Ka4-14

Ka4-15

*Kb2-15

*Kb2-16

*80

*81

*82

*52

*134

*135

2-16 we can recognize, it corresponds to 648 / 3 in H. Probably, therefore, *Kb2-16 indicates where the season of Spring Sun is ending.

135 = 5 * 27 and 27 = 3 * 3 * 3, a triplet of '3' signs, possible to use as an allusion for the 'fire bird' having reached to his limit.

81 = 3 * 3 * 3 * 3, a quartet of '3' signs, corresponds to the 2nd part of the week (from Mercury onwards to the 'egg' of Saturn).

Mago in Ka4-14 has a closed mouth and its head can therefore illustrate the Sun 'egg'. It is a Tuesday, and Mars is arriving with the 'fire'. 4-14 should indicate the first day of the new child. 14 * 29.5 = 413 and then comes 0.

There are ca 180 days from spring equinox to autumn equinox. If we use 364 as a measure for the whole year cycle (excluding the 'egg'), then the season when Sun is 'present' will be 182 (= 7 * 26) days.

52 glyphs can signify 7 because we will immediately associate 52 with the number of weeks in a year. 52 can therefore have a symbolic function.

Sun is associated with 26 and if we read '7' when we see 52, then we can conclude the number of days in 'summer' should be 7 * 26 = 182.

192 (my reconstructed number of glyph spaces on K) - 52 = 140, and these 52 glyphs can therefore also be used to define 'winter' as equal to 140 (= 280 / 2) nights. But obviously 140 cannot be added to 182 in order to reach the length of the solar year.

If we add 1 'egg' night for each fortnight, then 140 will turn out to be 150 nights or half those 300 for Sun.