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MONTH. A space of time variously computed, as it is applied to astronomical, civil or solar, or lunar months.
     2. The astronomical month contains one-twelfth part of the time employed by the sun in going through the zodiac. In law, when a month simply is mentioned, it is never understood to mean an astronomical month.
     3. The civil or solar month is that which agrees with the Gregorian calendar, and these months are known by the names of January, February, March, &c. They are composed of unequal portions of time. There are seven of thirty-one days each, four of thirty, and one which is sometimes composed of twenty-eight days, and in leap years, of twenty-nine.
     4. The lunar mouth is composed of twenty-eight days only. When a law is passed or contract made, and the month is expressly stated to be solar or civil, which is expressed by the term calendar month, or when it is expressed to be a lunar month, no difficulty can arise; but when time is given for the performance of an act, and the word month simply is used, so that the intention of the parties cannot be ascertained then the question arises, how shall the month be computed? By the law of England a month means ordinarily, in common contracts, as, in leases, a lunar month; a contract, therefore, made for a lease of land for twelve months, would mean a lease for forty-eight weeks only. 2 Bl. Com. 141; 6 Co. R. 62; 6 T. R. 224. A distinction has been made between "twelve months," and "a twelve-month;" the latter has been held to mean a year. 6 Co. R. 61.
     5. Among the Greeks and Romans the months were lunar, and probably the mode of computation adopted in the English law has been adopted from the codes of these countries. Clef des Lois Rom. mot Mois.
     6. But in mercantile contracts, a month simply signifies a calendar month; a promissory note to pay money in twelve months, would therefore mean a promise to pay in one year, or twelve calendar months. Chit. on Bills, 406; 1 John. Cas. 99; 3 B. & B. 187; 1 M. & S. 111; Story on Bills, Sec. 143; Story, P. N. Sec. 213; Bayl. on Bills, c. 7; 4 Kent, Comm. Sect. 56; 2 Mass. 170; 4 Mass. 460; 6 Watts. & Serg. 179.
     7. In general, when a statute Speaks of a month, without adding "calendar," or other words showing a clear intention, it shall be intended a lunar month. Com. Dig. Ann. B; 4 Wend. 512; 15 John. R. 358. See 2 Cowen, R. 518; Id. 605. In all legal proceedings, as in commitments, pleadings, &c. a month means four weeks. 3 Burr. R. 1455; 1 Bl. Rep. 450; Dougl. R. 446 463.
     8. In Pennsylvania and Massachusetts, and perhaps some other states, 1 Hill. Ab. 118, n., a month mentioned generally in a statute, has been construed to mean a calendar month. 2 Dall. R. 302; 4 Dall. Rep. 143; 4 Mass. R. 461; 4 Bibb. R. 105. In England, in the ecclesiastical law, months are computed by the calendar. 3 Burr. R. 1455; 1 M. & S. 111.
     9. In New York, it is enacted that whenever the term "month," or "months," is or shall be used in any statute, act, deed, verbal or written contract, or any public or private instrument whatever, it shall be construed to mean a calendar, and not a lunar month; unless otherwise expressed. Rev. Stat. part 1, c. 19, tit. 1, Sec. 4. Vide, generally, 2 Sim. & Stu. 476; 2 A. K. Marsh. Rep. 245; 3 John. Ch. Rep. 74; 2 Campb. 294; 1 Esp. R. 146; 6 T. R. 224; 1 M. & S. 111; 3 East, R. 407; 4 Moore, 465; 1 Bl. Rep. 150; 1 Bing. 307; S. C. 8 Eng. C. L. R. 328;. 1 M. & S. 111; 1 Str. 652; 6 M. & S. 227; 3 Brod. & B. 187; S. C. 7 Eng. C. L. R. 404.

References in periodicals archive ?
A: 12 average lunation periods = 50 weeks + 4d 8:48:40
Indeed, the Jewish calendar in use today preserves both temporal cycles and the unruly lack of fit between them in its "architecture of time," (19) a tension between the wild rhythms of nature embodied in the festivals linked to the cycles of lunation and year versus the tame rhythm of culture manifested by the weekly Sabbath.
The lunar month, or synodic cycle, continues to be the rough unit of measurement for the traditional Torres 'calendar', which is divided into eleven (possibly twelve) such lunations.
One lunation later, on March 18th at 10:35 UT, it goes 4.
We've recently installed a new CCD camera enabling us to image the entire observable sky from Flagstaff each lunation.
For example, in his description of the duration of a lunation, or synodic month, Meeus notes that the period changes due to the pivot of the major axis of the Moon's orbit.
22) Although this sequence takes place each lunation, observing it from the Earth is indeed a challenging assignment dependent on a number of factors, such as the exact position of the terminator, the Moon's declination, libration, local weather and the quality of seeing and so on.
Interesting feedback: "Very nice comments about the lunation animation"; another visitor thought the site should just be in Portuguese--"Why bother to put it in English?
As a follow-up to Collins' images I tried to capture Plato as near as possible to the same illumination the following lunation, even though this meant observing in near-daylight and poor seeing.
Nearly one lunation later, a hairline crescent may be visible at dawn on December 28th slightly more than a day before New Moon, and at dusk on December 30th slightly more than a day after New Moon.
The current Islamic year 1416, therefore, denotes the number of lunation years that have elapsed since July 16, 622, the date chosen as the starting point.
For example, certain lunar features seem to exhibit variations in tone or hue from lunation to lunation, and these cannot be attributed to changing solar illumination.