import { Timezone } from '../timezones/types.js';
import '../timezones/identifiers.js';

/**
 * Format date.
 *
 * @param	_date		( Optional ) The date string | milliseconds since UNIX epoch time | Date object. Default: `new Date()`.
 * @param	format		( Optional ) The format string or `Intl.DateTimeFormatOptions`.
 * @param	locales		( Optional ) The `Intl.LocalesArgument`.
 * @param	_timeZone	( Optional ) The Timezone name.
 *
 * Day
 * - `d`: Day of the month, 2 digits with leading zeros
 * - `j`: Day of the month without leading zeros
 * - `D`: A textual representation of a day, three letters
 * - `J`: A textual representation of a day, one letter
 * - `l`: A full textual representation of the day of the week
 * - `w`: Numeric representation of the day of the week
 * - `N`: ISO 8601 numeric representation of the day of the week
 * - `S`: English ordinal suffix for the day of the month, 2 characters. Works well with `j`
 * - `z`: The day of the year (starting from 0)
 * - `b`: The day period
 *
 * Week
 * - `W`: ISO 8601 week number of year, weeks starting on Monday
 *
 * Month
 * - `m`: Numeric representation of a month, with leading zeros
 * - `n`: Numeric representation of a month, without leading zeros
 * - `M`: A short textual representation of a month, three letters
 * - `F`: A full textual representation of a month
 * - `E`: A narrow textual representation of a month
 * - `t`: Number of days in the given month
 *
 * Year
 * - `L`: Whether it's a leap year - 1 if it is a leap year, 0 otherwise
 * - `Y`: A full numeric representation of a year, at least 4 digits, with - for years BCE
 * - `y`: A two digit representation of a year
 *
 * Time
 * - `a`: Lowercase Ante Meridiem and Post Meridiem
 * - `A`: Uppercase Ante Meridiem and Post Meridiem
 * - `B`: Swatch Internet Time
 * - `g`: 12-hour format of an hour without leading zeros
 * - `G`: 24-hour format of an hour
 * - `h`: 12-hour format of an hour with leading zeros
 * - `H`: 24-hour format of an hour with leading zeros
 * - `i`: Minutes with leading zeros
 * - `s`: Seconds with leading zeros
 * - `v`: Milliseconds
 * - `u`: Microseconds
 *
 * Timezone
 * - `e`: Current runtime Timezone identifier
 * - `C`: Timezone identifier - long
 * - `K`: Timezone identifier - long generic
 * - `Q`: Timezone identifier - long offset
 * - `q`: Same as `Q` but without colon
 * - `R`: Timezone identifier - short
 * - `V`: Timezone identifier - short generic
 * - `T`: Timezone identifier - short offset
 * - `I`: Whether or not the date is in Daylight Saving Time - 1 if it in DST, 0 otherwise
 * - `O`: Difference to Greenwich time (GMT) without colon between hours and minutes
 * - `P`: Difference to Greenwich time (GMT) with colon between hours and minutes
 * - `p`: The same as `P`, but returns 'Z' instead of +00:00
 * - `Z`: Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those east of UTC is always positive
 *
 * Full Datetime
 * - `c`: ISO 8601 date
 * - `r`: » RFC 2822/» RFC 5322 formatted date
 * - `U`: Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
 *
 * @returns	The formatted Date string.
 */
declare const formatDate: (_date?: string | number | Date, format?: string | (Intl.DateTimeFormatOptions & {
    timeZone?: Timezone;
}), locales?: Intl.LocalesArgument, _timeZone?: Timezone) => string;

export { formatDate };