Date/time conversion to user's local time - issue - iphone

Question

My application grabs a date / time from a remote server which is alway in GMT +1 (UTC/GMT +1 hour) timezone.
The format the server is providing is :
24 08 2011 08:45PM
I would like to convert this time stamp into the equivalent time/date of the users time zone (the user can be anywhere in the world).
thus as an example :
24 08 2011 08:45PM coming from the server should be presented
24 08 2011 09:45PM to an Italian user (rome) (GMT + 1)
This code works on some timezones but i have a bad feeling that there is something very wrong about it and that there is a much more elegant way to do it
NSString *dateString = #"24 08 2011 09:45PM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"dd MM yyyy hh:mma"];
NSDate *dateFromString = [[[NSDate alloc] init] autorelease];
dateFromString = [dateFormatter dateFromString:dateString];
NSDate* sourceDate = dateFromString;
NSTimeZone* sourceTimeZone = [NSTimeZone timeZoneWithAbbreviation:#"BST"];
NSTimeZone* destinationTimeZone = [NSTimeZone systemTimeZone];
NSInteger sourceGMTOffset = [sourceTimeZone secondsFromGMTForDate:sourceDate];
NSInteger destinationGMTOffset = [destinationTimeZone secondsFromGMTForDate:sourceDate];
NSTimeInterval interval = destinationGMTOffset - sourceGMTOffset;
NSDate* destinationDate = [[NSDate alloc] initWithTimeInterval:interval sinceDate:sourceDate] ;
NSString *thePubDate = [dateFormatter stringFromDate:destinationDate];//[appLogic getPubDate];
NSLog(#"Result : %#",thePubDate);
[dateFormatter release];
//[dateFromString release];
[destinationDate release];
I will appreciate your thoughts and suggestions on the matter

Answer 1

Just set the timeZone in the dateFormatter, This code is enough
NSString *dateString = #"24 08 2011 09:45PM";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"dd MM yyyy hh:mma"];
NSTimeZone* sourceTimeZone = [NSTimeZone timeZoneWithAbbreviation:#"BST"];
[dateFormatter setTimeZone:sourceTimeZone];
NSDate *dateFromString = [dateFormatter dateFromString:dateString];
The dateFromString will now have the date 24 08 2011 08:45PM(GMT).. Then to convert this to string with local time just code the following,
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"dd MM yyyy hh:mma"];
NSString *stringFromDAte = [dateFormatter stringFromDate:dateString];