export declare const MINUTE_MS = 60000;
export declare const DAY_MS = 86400000;
/**
 * Get the Date at the start of a day in UTC or local time.
 *
 * @param offset
 * @param timeZone The time zone offset in minutes, or set to `true` to use the
 *                 local time zone (`false`, the default, uses UTC).
 * @returns The reqested date.
 */
export declare const startOfDay: (date?: Date | null, offset?: number, timeZone?: boolean | number) => Date;
/**
 * |         | long        |short|narrow|numeric|2-digit|
 * |:-------:|:-----------:|:---:|:----:|:-----:|:-----:|
 * | weekday | Monday      | Mon |   M  |       |       |
 * | era     | Anno Domini | AD  |   A  |       |       |
 * | year    |             |     |      | 2012  |  12   |
 * | month   | March       | Mar |   M  |   3   |  03   |
 * | day     |             |     |      |   1   |  01   |
 * | hour    |             |     |      |   1   |  01   |
 * | minute  |             |     |      |   1   |  01   |
 * | second  |             |     |      |   1   |  01   |
 *
 * * fractionalSecondDigits: 1, 2 or 3 for number of digits.
 * * timeZoneName: long (Pacific Standard Time), short (PST),
 *   longOffset (GMT-0800), shortOffset (GMT-8), longGeneric (Pacific Time),
 *   shortGeneric (PT).
 */
export declare const dateFormatter: Intl.DateTimeFormat;
export declare const timeFormatter: Intl.DateTimeFormat;
export declare const dddFormatter: Intl.DateTimeFormat;
export declare const dMmmFormatter: Intl.DateTimeFormat;