Fullday

Fullday, often written as full day or full-day, refers to a duration that encompasses an entire calendar day or a full-length portion of a day designated for activities. In practice, the term is used to indicate that an event, program, or schedule covers the whole day rather than only part of it.

In scheduling and employment contexts, a full day may correspond to the standard working day, commonly around eight hours, though the exact length varies by organization and jurisdiction. In educational settings, a full-day program usually runs from morning through late afternoon, as opposed to a half-day schedule.

The phrase can appear in different spellings and formats. It may be written as "full day," "full-day," or, less commonly, "fullday" when used as a compound or in branding. Style guides differ on hyphenation and capitalization.

In practical use, full-day designations are common in calendars, event planning, and program descriptions to signal daytime-long commitments, such as conferences, workshops, or training sessions. They are also used in forms and policies to distinguish between full-day and partial-day options.

See also: half day, full-time, calendar day, business day, school day.