To be more specific about half-Moon accounting, a day count between waxing and waning stages can especially be recognized from certain of the sea scrolls that were recovered at Qumran. These several snippets of early-written text surprisingly indicate the ancients would have tracked each half of the lunar month in cross-reference with parts or stages of light or darkness. In example, portions from the Hymn Scroll reflect that some among the period astronomers did account for time in distinct periods (or patterns) of either daytime or nighttime:
"The times for worship . . . from cycle to cycle . . . at the return of day, according to the ordinance . . . at the appointed return of night, in their station . . . in the fixed position of stations according to the law of their markers . . . " (my paraphrase).
It can be interpreted from others of the sea scrolls that the lunar month would sometimes have been tracked (or mapped) in specific half cycles (from either the limits of the full-phase or from boundary of the new-phase).
Scroll 4Q317, in particular, shows the half Moon to have been uniquely tracked in corresponding parts or stages of light and darkness. The following paragraph represents a reconstruction of the scroll (based upon the currently available English translations):
4th of month, 11 parts obscured, Moon enters Day
5th of month, 12 parts obscured, Moon enters Day
6th of month, 13 parts obscured, Moon enters Day
7th of month, 14 parts obscured, Moon enters Day
8th of month, 14 and a half obscured and Moon...
... rules all Day
When the Sun sets, the light of the Moon is no
longer obscured. Thus, the Moon begins to be
revealed again on One-to-Sabbath [Echd BShbt],
the 8th of the month).
9th of month, 1 parts revealed, Moon enters Night
10th of month, 2 parts revealed, Moon enters Night
11th of month, 3 parts revealed, Moon enters Night
12th of month, 4 parts revealed, Moon enters Night
13th of month, 5 parts revealed, Moon enters Night
14th of month, 6 parts revealed, Moon enters Night
15th of month, 7 parts revealed, Moon enters Night
16th of month, 8 parts revealed, Moon enters Night
17th of month, 9 parts revealed, Moon enters Night
18th of month, 10 parts revealed, Moon enters Night
19th of month, 11 parts revealed, Moon enters Night
20th of month, 12 parts revealed, Moon enters Night
21st of month, 13 parts revealed, Moon enters Night
22nd of month, 14 parts revealed, Moon enters Night
22nd of month, 14 and a half revealed and Moon...
... rules all Night
When the Sun sets, the light of the Moon is no
longer revealed. Thus, the Moon begins to be
obscured again on One-to-Sabbath [Echd BShbt],
the 22nd of the month).
The theme of Scroll 4Q317 is significant in mirroring that a segment of period astronomers would have formally charted the half-Moon cycle. On this respective scroll, the phases of the Moon (waxing and waning) are clearly mapped throughout 14 parts or stages of light and 14 parts or stages of dark.
A unique half-month accounting for the revolution of the lunar month was recognized several years ago by those researchers who first worked on recovering the scrolls. A lead translator then noted that some among the ancients appear to have tracked the month cycle from the full phase of the Moon (J. T. Milik, 1959). A modern equivalence is perhaps easier to make through an analysis of the early used Roman Calendar. This calendar was originally lunar based (with the full-phase of the Moon appearing at mid-month). In this lunar calendar, the last days of the Moon (in the waning phases) were counted backward to the beginning of the next month. Thus, the middle of the month (or the point of the full-phase of the Moon) was specially reckoned and this epoch seems to have had a certain special significance throughout the ancient world.
When describing the revolutions of the heavenly luminaries, the author (or authors) of the Enoch literature likewise noted that the location of a half part (or division) between light or darkness. The position of the cited half was described at the middle of the lunar month--as follows:
"[Light is given to the Moon] in (definite) measure. . . when her light is uniform it amounts to the 7th part. . . in the beginning. . . the Moon sets with the Sun, and is invisible that night with the 14 parts and the half of one of them. . . In single 7th parts she accomplishes all her light in the east, and in single 7th parts accomplishes all her darkness in the west . . . ".
Texts produced and reproduced in the era of the Temple thus mirror that some among the ancients did uniquely account for each half-Moon cycle--where each half month was resolved in the context of a fixed time grid or pattern (of light or darkness).
It is here significant that 14 waxing days and 14 waning days inherently equal a total time span of 28 solar days. A formal count of the month by lunar-stages is further evident from some of the scrolls (which are conspicuous in the usage of no more than a fixed count of 28 days in each lunar cycle):
Note that not one fragment recovered from Qumran Cave 4 has a description of a lunar month that contained more than 28 days (refer to the 'Astronomical Books Of Enoch', by Milik. Pages 283-284).
Clement of Alexandria (2nd century) furthermore described the lunar month in 4 weekly periods of 7 days--as follows:
"And in periods of 7 days the moon undergoes its changes. In the first week she be comes half moon; in the second, full moon; and in the third, in her wane, again half moon; and in the fourth she disappears." ([i]'The Stromata', Chapter 16).[/i]
This indicated accounting of the Moon in units of the week is additionally significant in regard that Echad B+Shabat [= One-to-Sabbath] appears to have additionally been accounted for [= within the context of the lunar-month cycle].
The above cited celebration (called the 'one' or the 'first') is of special interest because in seven verses throughout the New Testament a seemingly similar Sabbath date can be cited. In example, the previously quoted verse from the book of Acts mirrors a nighttime assembly among Christians on this date--as follows:
"And upon the One-to-the-Sabbaths [or Greek: Mia twn Sabbatwn], when the disciples came together to break bread, Paul preached unto them, in expectation (or observance) of the coming of morning; and continued his speech until midnight . . . When he . . . had broken bread, and eaten, and talked a long while, even till break of light had come, they brought the young man . . . " (refer to the Greek version, Chapter 20: verses 7-12).
In the Acts account as quoted above, the disciples are shown assembled upon 'Mia twn Sabbatwn'. (Note that "One-to-the-Sabbaths" would represent a literal translation of the cited calendar term). Because of the description of an assembly throughout the night hours upon the One-to-the-Sabbaths, it seems plausible to interpret this respective occasion in the context of Enoch's guides.