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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 classic literature ?
It was sorrowful to think how many days, and weeks, and months, and years of toil had been wasted on these musty papers, which were now only an encumbrance on earth, and were hidden away in this forgotten corner, never more to be glanced at by human eyes.
There are able-bodied men here who work from early morning until late at night, in ice-cold cellars with a quarter of an inch of water on the floor--men who for six or seven months in the year never see the sunlight from Sunday afternoon till the next Sunday morning-- and who cannot earn three hundred dollars in a year.
In a month, you will go away, and I can be happy at the thought of that month all my life long
Hubbard had set a price of twenty dollars a year, for the use of two telephones on a private line; and when exchanges were started, the rate was seldom more than three dollars a month.
But tell me, thou perverter of the squirely rules of knight-errantry, where hast thou ever seen or read that any knight-errant's squire made terms with his lord, 'you must give me so much a month for serving you'?
When it began to be talked about that Georgina should be taken abroad, mamma wrote to me that I had better stop in Paris for a month with Harold, so that she could pick me up on their way to Hyeres.
He reached Kazeh, on his return, on the 25th of August, and, in company with Burton, again took up the route to Zanzibar, where they arrived in the month of March in the following year.
I saw he was longing to get away to the bush, and at the end of the month I asked him what he intended to do.
He cursed his fate because he had no money to travel, and he knew his uncle would not send him more than the fifteen pounds a month which had been agreed upon.
Of one thing I felt more strongly convinced than ever, after spending this month in seeing the actual life of the coloured people, and that was that, in order to lift them up, something must be done more than merely to imitate New England education as it then existed.
The papers, as they appeared from month to month, were not the product of those unities of time and place which were the happy conditioning of
What I ask is, cash payment in full the first of each month, sixty dollars a month gold--"