Function parseDateTime

packages/@internationalized/date/src/string.ts:77–102

(value: string)

/** Parses an ISO 8601 date and time string, with no time zone. */
export function parseDateTime(value: string): CalendarDateTime {
  let m = value.match(DATE_TIME_RE);
  if (!m) {
    if (ABSOLUTE_RE.test(value)) {
      throw new Error(`Invalid ISO 8601 date time string: ${value}. Use parseAbsolute() instead.`);
    }
    throw new Error('Invalid ISO 8601 date time string: ' + value);
  }

  let year = parseNumber(m[1], -9999, 9999);
  let era = year < 1 ? 'BC' : 'AD';

  let date: Mutable<CalendarDateTime> = new CalendarDateTime(
    era,
    year < 1 ? -year + 1 : year,
    parseNumber(m[2], 1, 12),
    1,
    m[4] ? parseNumber(m[4], 0, 23) : 0,
    m[5] ? parseNumber(m[5], 0, 59) : 0,
    m[6] ? parseNumber(m[6], 0, 59) : 0,
    m[7] ? parseNumber(m[7], 0, Infinity) * 1000 : 0
  );

  date.day = parseNumber(m[3], 0, date.calendar.getDaysInMonth(date));
  return date as CalendarDateTime;
}

/**
 * Parses an ISO 8601 date and time string with a time zone extension and optional UTC offset (e.g.