/** Formato de visualización datetime 12h con segundos (Figma DatePicker — hora integrada). */
export declare const DATETIME_DISPLAY_FORMAT = "dd/MM/yyyy hh:mm:ss a";
export type Meridiem = 'AM' | 'PM';
/** Anchos inline para segmentos del campo (sin token de ancho en DS; unidades `ch`). */
export declare const INLINE_SEGMENT_WIDTH: {
    readonly twoDigit: "ui-w-[2ch]";
    readonly fourDigit: "ui-w-[4ch]";
};
export interface DateTimeParts {
    day: string;
    month: string;
    year: string;
    hour12: string;
    minute: string;
    second: string;
    meridiem: Meridiem;
}
export type ParsedDateTimeInput = {
    kind: 'full';
    date: Date;
} | {
    kind: 'date-only';
    date: Date;
} | {
    kind: 'time-only';
    date: null;
    time: Pick<DateTimeParts, 'hour12' | 'minute' | 'second' | 'meridiem'>;
} | {
    kind: 'invalid';
};
export declare const EMPTY_DATETIME_PARTS: DateTimeParts;
/** Hora por defecto cuando el usuario no elige hora (12:00 AM en formato 12h). */
export declare const DEFAULT_TIME_PARTS: Pick<DateTimeParts, 'hour12' | 'minute' | 'second' | 'meridiem'>;
export declare const clampHour12: (value: number) => number;
/** Minutos y segundos: 00–59 (estándar reloj; Figma no accesible — ver story). */
export declare const clampMinuteOrSecond: (value: number) => number;
export declare const normalizeMeridiem: (value: string) => Meridiem;
export declare const pad2: (value: number | string) => string;
export declare const dateToParts: (date: Date, showSeconds?: boolean) => DateTimeParts;
export declare const partsToDate: (parts: DateTimeParts, showSeconds?: boolean) => Date | null;
export declare const formatDateTimeForInput: (date: Date | null, showSeconds?: boolean) => string;
export interface FormatDisplayDateTimeOptions {
    showSeconds?: boolean;
}
/**
 * Formato de visualización read-only del campo principal (`showTime`).
 * Ejemplo: `15/07/2024 - 12:39 AM` o con segundos `15/07/2024 - 12:39:45 AM`.
 */
export declare const formatDisplayDateTime: (date: Date | null, options?: FormatDisplayDateTimeOptions) => string;
/** Formato read-only de un rango con hora en cada extremo. */
export declare const formatDisplayDateTimeRange: (range: {
    start: Date | null;
    end: Date | null;
}, options?: FormatDisplayDateTimeOptions) => string;
export declare const mergeDateWithTimeParts: (baseDate: Date, time: Pick<DateTimeParts, "hour12" | "minute" | "second" | "meridiem">, showSeconds?: boolean) => Date;
export declare const mergeTimePartsIntoDate: (existing: Date | null, time: Pick<DateTimeParts, "hour12" | "minute" | "second" | "meridiem">, showSeconds?: boolean) => Date | null;
export declare const parseDateTimeInput: (input: string) => ParsedDateTimeInput;
export declare const sanitizeNumericSegment: (raw: string, maxLength?: number) => string;
export declare const sanitizeYearSegment: (raw: string) => string;
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