startduration

Startduration is a term used in data models, APIs, and multimedia processing to describe a time interval defined by its starting point and its length. It is not a standard across all domains, but it is commonly used as a convenient label for representing a window of time.

In most schemas, startduration appears as either two fields labeled start and duration, or as a single composite object. Start is often a timestamp or date-time value; duration is a non-negative length expressed in seconds, milliseconds, or ISO 8601 duration formats. Depending on the design, start and duration may be stored separately or together in a single structure.

Applications of startduration include scheduling tasks, selecting portions of video or audio for processing, and creating time windows for data analysis. It provides a clear way to specify when an event begins and how long it lasts, which supports filtering, visualization, and synchronization across systems.

When both components are present, the end time is computed as start plus duration, enabling bounds checks and overlap detection. Some implementations also store only duration with an implicit or separately provided start, while others use the exact label startDuration to emphasize the combined nature of the interval.

See also: duration, start time, time interval, time window.