import { ManipulateType } from 'dayjs';
import { ConfigType, Dayjs, OpUnitType } from 'dayjs';
import { DurationUnitType } from 'dayjs/plugin/duration';
/**
 * return date on Dayjs format
 * @param date
 * @param format
 */
export declare function getDate(date?: ConfigType, format?: string): Dayjs;
/**
 * return date as string
 * ugly code because previous(moment) format it to another string
 * @param date
 */
export declare function getDateToString(date?: ConfigType): string;
/**
 * return date on Dayjs format for sending time
 * @param time
 */
export declare function getDateByTime(time: string): Dayjs;
/**
 * return date on Dayjs format
 * @param date
 */
export declare function getLocalDate(date: ConfigType): Dayjs;
/**
 * check if date expired
 * @param date
 */
export declare function isExpired(date: ConfigType): boolean;
/**
 *
 * @param date
 * @param isSameOrAfterDate
 */
export declare function isSameOrAfter(date: ConfigType, isSameOrAfterDate: ConfigType): boolean;
/**
 *
 * @param date
 * @param isSameOrBeforeDate
 */
export declare function isSameOrBefore(date: ConfigType, isSameOrBeforeDate: ConfigType): boolean;
/**
 * check if date expired
 * @param date
 * @param isBeforeDate
 */
export declare function isBefore(date: ConfigType, isBeforeDate: ConfigType): boolean;
/**
 * get day of week number
 * @param date
 */
export declare function getDayOfWeekNumber(date?: ConfigType): number;
/**
 * get day of month number
 * @param date
 */
export declare function getDayOfMonthNumber(date?: ConfigType): number;
/**
 * get day name from locale extensions
 * @param date
 */
export declare function getDayName(date?: ConfigType): string;
/**
 * get day short name from locale extensions
 * @param date
 */
export declare function getDayShortName(date?: ConfigType): string;
/**
 * get month number
 * @param date
 */
export declare function getMonthNumber(date?: ConfigType): number;
/**
 * get month name from locale extensions
 * @param date
 */
export declare function getMonthName(date?: ConfigType): string;
/**
 * get month short name from locale extensions
 * @param date
 * @param format
 */
export declare function getMonthShortName(date: ConfigType, format: string): string;
/**
 * get year number
 * @param date
 */
export declare function getYear(date?: ConfigType): number;
/**
 *
 * @param date
 * @param keepLocalTime
 */
export declare function getDateUtc(date?: ConfigType, keepLocalTime?: boolean): Dayjs;
/**
 *
 * @param date
 * @param offset
 * @param keepLocalTime
 */
export declare function changeDateUtcOffset(date: ConfigType, offset: number, keepLocalTime?: boolean): Dayjs;
/**
 *
 */
export declare function getDateUtcOffset(date?: ConfigType): number;
/**
 *
 * @param amount
 * @param unit
 * @param date
 */
export declare function addDurationTime(date: ConfigType, amount: number | string, unit: ManipulateType): Dayjs;
/**
 *
 * @param amount
 * @param unit
 * @param date
 */
export declare function subtractDurationTime(date: ConfigType, amount: number | string, unit: ManipulateType): Dayjs;
/**
 *
 * @param unit
 * @param date
 */
export declare function getStartOf(date: ConfigType, unit: OpUnitType): Dayjs;
/**
 *
 * @param unit
 * @param date
 */
export declare function getEndOf(date: ConfigType, unit: OpUnitType): Dayjs;
/**
 *
 * @param dates
 */
export declare function getMaxDate(dates: ConfigType[]): Dayjs;
/**
 *
 * @param dates
 */
export declare function getMinDate(dates: ConfigType[]): Dayjs;
/**
 *
 * @param formatStructure
 * @param date
 */
export declare function getFormatDate(date: ConfigType, formatStructure?: string): string;
/**
 *
 * @param date
 * @param formatStructure
 */
export declare function getFormatLocalDate(date: ConfigType, formatStructure: string): string;
/**
 *
 * @param date
 * @param inMs: if true, return timestamp in milliseconds from Unix Epoch instead of in seconds
 */
export declare function getUnixTimestamp(date?: ConfigType, inMs?: boolean): number;
/**
 * get date from timestamp
 * @param timestamp
 */
export declare function getDateFromTimestamp(timestamp: number): Dayjs;
/**
 *
 * @param date
 */
export declare function getHour(date?: ConfigType): number;
/**
 *
 * @param date
 */
export declare function getMinute(date?: ConfigType): number;
/**
 *
 * @param date
 */
export declare function getSeconds(date?: ConfigType): number;
/**
 *
 * @param date
 */
export declare function getMilliseconds(date?: ConfigType): number;
/**
 *
 * @param date
 */
export declare function getRelativeFromNow(date?: ConfigType): string;
/**
 *
 * @param date
 */
export declare function getRelativeToNow(date?: ConfigType): string;
/**
 *
 * @param date
 */
export declare function convertToDate(date?: ConfigType): Date;
/**
 *
 * @param firstDate
 * @param secondDate
 * @param unit
 * @param float
 */
export declare function getDiffBy(firstDate: ConfigType, secondDate: ConfigType, unit: OpUnitType, float?: boolean): number;
/**
 * get duration as minutes
 * @param durationTime
 * @param unit
 */
export declare function getDurationAsMinutes(durationTime: number, unit: DurationUnitType): number;
/**
 * get duration as seconds
 * @param durationTime
 * @param unit
 */
export declare function getDurationAsSeconds(durationTime: number, unit: DurationUnitType): number;
/**
 * get duration as days
 * @param durationTime
 * @param unit
 */
export declare function getDurationAsDays(durationTime: number, unit: DurationUnitType): number;
/**
 * create Dayjs from date object.
 *
 * example for dateObject:
 * { year: 2010,  month: 1,  day: 12 }
 *
 * For more info check https://day.js.org/docs/en/plugin/object-support
 * @param dateObject
 */
export declare function fromObjectToDayjs(dateObject: Record<string, any>): Dayjs;
/**
 * turn a timestamp that represents local time to a timestamp that represents utc without conversion.
 * for example, convert a timestamp that represents 14:00 in local time to a timestamp that represents 14:00 in utc
 * @param timestamp
 * @param inSeconds, true if the timestamp represents seconds from 1970, false if it represents ms from 1970
 */
export declare function turnUnixLocalTimeToUtc(timestamp: number, inSeconds?: boolean): number;
/**
 * is given date is a valid date
 * @param date
 */
export declare function isValidDate(date: ConfigType): boolean;
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