//#region src/components/gantt/utils/dates.d.ts
/**
 * Rounds a millisecond timestamp down to the nearest interval boundary.
 * Uses pure integer arithmetic to avoid Date object allocations.
 *
 * @throws {RangeError} If selectedTimeIntervalMs does not match a known interval.
 */
declare function roundMsToInterval(timestampMs: number, selectedTimeIntervalMs: number): number;
//#endregion
export { roundMsToInterval };
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