/**
 * Calculate seconds, minutes and hours for a given number of milliseconds.
 */
export declare const getTimeFragments: (time: number) => {
    hours: number;
    minutes: number;
    seconds: number;
};
/**
 * Formats a given time into a pretty human readable string.
 *
 * @example
 *   "04:42 min";
 *
 * @param time Time in milliseconds.
 * @param format RelativeTimeFormat to use for extracting localized strings for hours, minutes and
 *   seconds.
 */
export declare const formatTime: (timeLeft: number, format: Intl.RelativeTimeFormat) => string;
/**
 * Formats the given time into a duration string that can e.g. be used inside `<time>`.
 *
 * @see https://developer.mozilla.org/en-US/docs/Web/HTML/Element/time?retiredLocale=de#a_valid_duration_string
 */
export declare const timeToDurationString: (timeLeft: number) => `PT${number}H${number}M${number}S`;
/**
 * Parses an RFC 9557 time string (`HH:mm:ss.sssssssss`) and converts it into seconds.
 */
export declare const parseTimeSeconds: (value?: unknown) => number | null;