import { TimeUnit } from './TimeUnit';
/**
 * Represents a period of time.
 *
 * NOTE: This class is only accurate to 5 decimal places!
 */
export declare class TimeSpan {
    #private;
    /**
     * A [[TimeSpan]] instance representing no time.
     */
    static readonly zero: TimeSpan;
    /**
     * A [[TimeSpan]] instance representing the maximum time which may be represented.
     */
    static readonly maximum: TimeSpan;
    /**
     * Initializes a new instance of the [[TimeSpan]] class.
     * @param value The time value.
     * @param unit The time unit.
     */
    constructor(value: number, unit: TimeUnit);
    /**
     * Creates a [[TimeSpan]] instance for the specified time in milliseconds.
     * @param milliseconds The time span in milliseconds.
     * @returns A new [[TimeSpan]] instance.
     * @throws [[InvalidParameterError]] If milliseconds is too large to be represented as a [[TimeSpan]].
     */
    static fromMilliseconds(milliseconds: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in seconds.
     * @param seconds The time span in seconds.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromSeconds(seconds: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in minutes.
     * @param minutes The time span in minutes.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromMinutes(minutes: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in hours.
     * @param hours The time span in hours.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromHours(hours: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in days.
     * @param days The time span in days.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromDays(days: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in weeks.
     * @param weeks The time span in weeks.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromWeeks(weeks: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time in years.
     * @param years The time span in years.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromYears(years: number): TimeSpan;
    /**
     * Creates a [[TimeSpan]] instance for the specified time string.
     *
     * Example: "1 hour", "30 s", "1.5 days", or "1m 30s".
     *
     * Supported time units are:
     * * y / year / years
     * * w / week / weeks
     * * d / day / days
     * * h / hour /hours
     * * m / minute / minutes
     * * s / second / seconds
     * * ms / millisecond / milliseconds
     * @param timeString The time string to convert to a [[TimeSpan]] instance.
     * @returns A new [[TimeSpan]] instance.
     */
    static fromTimeString(timeString: string): TimeSpan;
    /**
     * Gets just the milliseconds portion of time span.
     */
    get milliseconds(): number;
    /**
     * Gets just the seconds portion of time span.
     */
    get seconds(): number;
    /**
     * Gets just the minutes portion of time span.
     */
    get minutes(): number;
    /**
     * Gets just the hours portion of time span.
     */
    get hours(): number;
    /**
     * Gets just the days portion of time span.
     */
    get days(): number;
    /**
     * Gets just the weeks portion of time span.
     */
    get weeks(): number;
    /**
     * Gets just the years portion of time span.
     */
    get years(): number;
    /**
     * Gets the total time span represented as milliseconds.
     */
    get totalMilliseconds(): number;
    /**
     * Gets the total time span represented as seconds.
     */
    get totalSeconds(): number;
    /**
     * Gets the total time span represented as minutes.
     */
    get totalMinutes(): number;
    /**
     * Gets the total time span represented as hours.
     */
    get totalHours(): number;
    /**
     * Gets the total time span represented as days.
     */
    get totalDays(): number;
    /**
     * Gets the total time span represented as weeks.
     */
    get totalWeeks(): number;
    /**
     * Gets the total time span represented as years.
     */
    get totalYears(): number;
    /**
     * Creates a string representation of the [[TimeSpan]].
     * @returns A string representation of the time span.
     */
    toString(): string;
    /**
     * Returns a JSON representation of the current object instance.
     * @returns A JSON representation of the current object instance.
     */
    toJSON(): object;
}