/** * Function IntlTimeZone::getOffset() * @link http://icu-project.org/apiref/icu4c/classicu_1_1TimeZone.html#afcbc1c48bf0b453b0123c4cb75d20e96 * @param float $date *   moment in time for which to return offsets, in units of milliseconds from *   January 1, 1970 0:00 GMT, either GMT time or local wall time, depending on *   `local'. * @param bool $local *   if true, `date' is local wall time; otherwise it is in GMT time. * @param int &$rawOffset *   output parameter to receive the raw offset, that is, the offset not *   including DST adjustments * @param int &$dstOffset *   output parameter to receive the DST offset, that is, the offset to be added *   to `rawOffset' to obtain the total offset between local and GMT time. If *   DST is not in effect, this value is zero; otherwise it is a positive value, *   typically one hour. */