static fromHTTP(text, opts = {}) {
    const [vals, parsedZone] = parseHTTPDate(text);
    return parseDataToDateTime(vals, parsedZone, opts, "HTTP", opts);
  }
Create a DateTime from an HTTP header date
@see https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3.1
@param {string} text - the HTTP header date
@param {Object} opts - options to affect the creation
@param {string|Zone} [opts.zone='local'] - convert the time to this zone. Since HTTP dates are always in UTC, this has no effect on the interpretation of string, merely the zone the resulting DateTime is expressed in.
@param {boolean} [opts.setZone=false] - override the zone with the fixed-offset zone specified in the string. For HTTP dates, this is always UTC, so this option is equivalent to setting the `zone` option to 'utc', but this option is included for consistency with similar methods.
@param {string} [opts.locale='system's locale'] - a locale to set on the resulting DateTime instance
@param {string} opts.outputCalendar - the output calendar to set on the resulting DateTime instance
@param {string} opts.numberingSystem - the numbering system to set on the resulting DateTime instance
@param {string} opts.weekSettings - the week settings to set on the resulting DateTime instance
@example DateTime.fromHTTP('Sun, 06 Nov 1994 08:49:37 GMT')
@example DateTime.fromHTTP('Sunday, 06-Nov-94 08:49:37 GMT')
@example DateTime.fromHTTP('Sun Nov  6 08:49:37 1994')
@return {DateTime}