NovemberDecember

NovemberDecember is a shorthand label for the period spanning November and December, the final two months of the Gregorian calendar year. It is used in calendars, planning documents, and data analysis to refer to the end-of-year window as a whole rather than to either month separately.

In origin, the names November and December derive from Latin novem and decem, meaning nine and ten, reflecting their positions in the early Roman calendar before January and February were added.

Geographic context varies: in the Northern Hemisphere November is late autumn and December marks the start of winter, while in the Southern Hemisphere November is late spring and December is early summer. Public holidays nested in this period include Thanksgiving and Christmas in many regions, as well as Hanukkah or other celebrations elsewhere.

Economically, November and December comprise a critical shopping season, with year-end sales, promotions, and often important closures for businesses. In education and government, Nov–Dec periods frequently host budgeting, reporting, and holiday schedules.

Although widely used in commerce and scheduling, NovemberDecember is not an official calendar term, and its meaning depends on regional conventions and the specific context.