/** Label for a full calendar month N months before the current month (e.g. Feb, Jan). Adds year when not the current year. */
export declare const getCalendarMonthMonthsAgoLabel: (monthsBack: number, locale?: string) => string;
export declare const getDateRange: (period?: string) => {
    startDate?: string;
    endDate?: string;
};
export declare const formatTime: (seconds: number) => string;
