twelve months

See: annum
References in classic literature ?
"I ought to go back to England this year, but if I can scrape together enough to keep body and soul on speaking terms I shall stay another twelve months. But then I shall have to go.
Finally, at the end of three weeks, on the 14th of April, twelve months after having quitted Tripoli, he reached the town of Ngornou.
I have no objection to any amount of blue sky in its proper place (it can be found at the 4000 level for practically twelve months out of the year), but I submit, with all deference to the educational needs of Transylvania, that "skylarking" in the centre of a main-travelled road where, at the best of times, electricity literally drips off one's stanchions and screw blades, is unnecessary.
He begins his story for her with the minute narration of this adventure which took about twelve months to develop.
It would not be seemly to inquire how far certain of these conditions had been kept,--how often, for example, Orlando's little hermit's bed had really needed remaking during those twelve months! Answer, ye birds of the air that lie in your snug nests, so close, so close, through the tender summer nights, and maybe with two or three little ones besides,--unless, indeed, ye too have felt the influence of the Zeit-geist, and have taken to sleeping in separate nests.
This chart divides the ocean into districts of five degrees of latitude by five degrees of longitude; perpendicularly through each of which districts are twelve columns for the twelve months; and horizontally through each of which districts are three lines; one to show the number of days that have been spent in each month in every district, and the two others to show the number of days in which whales, sperm or right, have been seen.
And here, also, they used to have a grand procession, of priests, citizens, soldiers, sailors, and the high dignitaries of the City Government, once a year, to shave the head of a made-up Madonna--a stuffed and painted image, like a milliner's dummy--whose hair miraculously grew and restored itself every twelve months. They still kept up this shaving procession as late as four or five years ago.
The cab-driver, who at once saluted him with the hiss of a serpent, might be that very Phaethon who had set this happiness in motion twelve months ago.
Last winter, I did not think, at another twelve months' end, I should be amusing a stranger to the family with relating them!
"We sailed from Peru," he says, "(where we had continued by the space of one whole year) for China and Japan, by the South Sea, taking with us victuals for twelve months." And through all the story we are not told who the "we" were or what their names or business.
If he declines to release you - well, when the twelve months are up you are free whether he wishes it or not.
My reports for the last twelve months make it sufficiently clear."