weeksduring

weeksduring is a neologism used in discussions of time-interval notation to designate the set of calendar weeks that fall within a given time interval, or more generally the weeks during which a predicate holds for a time series. It is not a standard term in official time-keeping or data-modeling standards.

Etymology and usage notes: The word combines the plural noun weeks with the preposition during. Because there is no formal, universally accepted definition, variations of its meaning appear in informal writings and domain-specific languages that describe time windows or weekly-based conditions.

Formal idea: In a formal reading, weeksduring(I) refers to the subset of calendar weeks that lie within the time interval I. If a predicate P can be attached to weeks, weeksduring(I, P) yields the weeks w such that w is contained in I and P(w) holds. This allows expressing concepts like “the weeks during which a condition is true” or “the full weeks contained in a period.”

Examples: If I is the interval from 2024-01-01 to 2024-01-31, weeksduring(I) would denote the calendar weeks fully contained within that range. If P checks for a weekly aggregate property, weeksduring(I, P) would select those weeks that satisfy P.

Relation and usage context: weeksduring relates to ideas such as time-window selection, interval arithmetic, and weekly scheduling constraints. Because it lacks standardization, precise semantics depend on the surrounding formalism or software specification. Users should define the exact interpretation (e.g., whether partial weeks are included or whether a predicate must hold for the entire week) when applying the term.