Typically, an effort to breed a disease- or pest-resistant strain of a crop can involve ten years of testing to verify the trait.
Study options: Most courses involve three years full-time study, although some last for four years, including those at Abertay, Dundee.
Raising the starting age for school would involve three years of nursery education instead of two, and six years of primary education instead of seven.
Not over a span of 10 months involving two years as Tiger Woods might do today.
The degree typically involves two years of study, and there is no thesis requirement.
The deal involves two years of teaching followed by a job at the Andersen office in New York.
For the promise of Hubble to be realized, the crew members of Columbia will have to complete the mission, which has involved two years of training.
Felix Richter, from Germany, says he is at Anglia Ruskin University because his international business undergraduate degree from the Berlin school of economics involves two years at Anglia Ruskin.
The doctoral program in art history typically involves two years of coursework, the completion of a qualifying paper, preliminary exams in three fields, a dissertation prospectus, and a dissertation.
"This research involved two years of very hard, unfunded work, to get this level of detail from one trauma center," said Sauaia, a physician and epidemiologist at Denver Health Medical Center.
