return;
        }
        synchronized( TZ ) {
            if( TZ.inDaylightTime( new Date() )) {
                // in DST
                if( TZ.inDaylightTime( new Date( t ))) {
                    // t also in DST so no correction
                } else {
                    // t not in DST so subtract 1 hour
                    t -= 3600000;
                }
            } else {
                // not in DST

         * suggests MS doesn't compute the signature (correctly) for error responses
         * (perhaps for DOS reasons).
         */
        /*
         * Looks like the failure case also is just reflecting back the signature we sent
         */

        /**
         * Maybe this is related:
         *