/**
 * Options for rounding a date's time components down.
 */
export interface RoundTimeDown {
    roundDownToDay?: boolean;
    roundDownToMinute?: boolean;
}
/**
 * Options for rounding a date to configured minute steps, then optionally rounding time components down.
 */
export interface StepRoundDateTimeDown extends RoundTimeDown {
    step?: number;
    roundToSteps?: boolean;
}
/**
 * Rounds the date's minutes to the nearest step, then rounds remaining time components down.
 *
 * @param date - Moment to round.
 * @param round - Step size and trailing-component clearing options.
 * @returns Rounded copy of the input moment.
 *
 * @example
 * ```ts
 * // Round to 15-minute steps and clear seconds
 * const rounded = roundDateTimeDownToSteps(new Date('2024-01-01T10:07:30Z'), { step: 15 });
 * // rounded minutes will be 15 (rounded up from 7), seconds cleared
 * ```
 */
export declare function roundDateTimeDownToSteps(date: Date, round: StepRoundDateTimeDown): Date;
/**
 * Clears time components of the date based on rounding options (e.g. seconds/milliseconds, or hours/minutes for day rounding).
 *
 * @param date - Moment to round.
 * @param round - Selection of time components to clear.
 * @returns Rounded copy of the input moment.
 *
 * @example
 * ```ts
 * const result = roundDateTimeDown(new Date('2024-01-01T10:07:30.500Z'), { roundDownToMinute: true });
 * // seconds and milliseconds are set to 0
 * ```
 */
export declare function roundDateTimeDown(date: Date, round: RoundTimeDown): Date;
/**
 * Rounds the date's minutes up to the nearest multiple of the given step.
 *
 * If the step is 1 or less, the date is returned unchanged. If rounding pushes minutes to 60, the hour is incremented.
 *
 * @param date - Moment to round.
 * @param step - Granularity of minutes the result must align to.
 * @returns Copy of the moment with minutes snapped to the requested step.
 *
 * @example
 * ```ts
 * const result = roundToMinuteSteps(new Date('2024-01-01T10:07:00Z'), 15);
 * // result minutes will be 15 (next step above 7)
 * ```
 */
export declare function roundToMinuteSteps(date: Date, step: number): Date;