Academic term
In most countries, the academic year begins in late summer or early autumn and ends during the following spring or summer. In Northern Hemisphere countries, this means that the academic year lasts from August, September, or October to May, June, or July. In Southern Hemisphere countries, the academic year aligns with the calendar year, lasting from February or March to November or December. The summer may or may not be part of the term system.
Summer vacation
In Nigeria, primary and secondary Schools usually start Summer vacation in mid-July and resume in the early weeks of September. The vacation is also known as the "3rd-term holiday" and it is the longest break in a school year (typically up to two months). The "first-term break" starts between one and two weeks prior to Christmas and ends the first or second week in January, lasting for about three weeks. The "first-term break" is usually the shortest break in a school year. The "second-term break" usually starts a week before Easter and lasts for another three weeks. This gives a total of about 14 weeks of holiday in a year. The geographical location of the school is also a factor.