Solving Time Difference problem with GMT

                    NSDate *resultDate = [format dateFromString:strDate];

                    NSTimeZone* sourceTimeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];

                    NSTimeZone* destinationTimeZone = [NSTimeZone systemTimeZone];

                    

                    NSInteger sourceGMTOffset = [sourceTimeZone secondsFromGMTForDate:resultDate];

                    NSInteger destinationGMTOffset = [destinationTimeZone secondsFromGMTForDate:resultDate];

                    NSTimeInterval interval = destinationGMTOffset - sourceGMTOffset;

                    

                    NSDate* destinationDate = [[[NSDate alloc] initWithTimeInterval:interval sinceDate:resultDate] autorelease];

                    [format setDateFormat:@"MMM dd yyyy, HH:mm"];

                    NSString *strResultDate = [format stringFromDate:destinationDate];