title: Formatting a date from string returns NULL
body: <p>I have two different strings, one for the date and the other one for the time.
  I have combined the two and I want to get an NSDate from it.</p>
  
  <pre><code>NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
  NSString *format = [NSDateFormatter dateFormatFromTemplate:@"yyyy-MM-dd" options:0 locale:[NSLocale currentLocale]];
  [formatter setDateFormat:format];
  NSString *date = [formatter stringFromDate:temp];
  NSLog(@"%@",date); //This shows 10/11/2013
  NSDateFormatter *formatterTime = [[NSDateFormatter alloc] init];
  
  NSString *formatTime = [NSDateFormatter dateFormatFromTemplate:@"j:mm" options:0 locale:[NSLocale currentLocale]];
  [formatterTime setDateFormat:formatTime];
  NSDate *tTime = [formatterTime dateFromString:[self.arrayOrari objectAtIndex:a]];
  NSString *time = [formatterTime stringFromDate:tTime];
  NSLog(@"%@",time); //This shows 6:58 PM
  
  NSString *dateTime = [NSString stringWithFormat:@"%@ %@",date,time];
  
  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  NSString *formatString = [NSDateFormatter dateFormatFromTemplate:@"yyyy-MM-dd j:mm" options:0 locale:[NSLocale currentLocale]];
  [dateFormatter setDateFormat:formatString];
  myMed.orario = [dateFormatter dateFromString:dateTime];
  NSLog(@"%@",myMed.orario); //This shows NULL
  </code></pre>
  
  <p>I've been trying since about four hours, but I'm not able to solve this problem.
  Any idea?</p>
  
  <p>UPDATE:
  I've tried this, as suggested:</p>
  
  <pre><code>NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
  NSString *format = [NSDateFormatter dateFormatFromTemplate:@"yyyy-MM-dd" options:0 locale:[NSLocale currentLocale]];
  [formatter setDateFormat:format];
  NSString *date = [formatter stringFromDate:temp];
  NSLog(@"%@",date); //This shows 10/11/2013
  NSDateFormatter *formatterTime = [[NSDateFormatter alloc] init];
  
  NSString *formatTime = [NSDateFormatter dateFormatFromTemplate:@"HH:mm" options:0 locale:[NSLocale currentLocale]];
  [formatterTime setDateFormat:formatTime];
  NSDate *tTime = [formatterTime dateFromString:[self.arrayOrari objectAtIndex:a]];
  NSString *time = [formatterTime stringFromDate:tTime];
  NSLog(@"%@",time); //This shows 18:58
  
  NSString *dateTime = [NSString stringWithFormat:@"%@ %@",date,time];
  
  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  NSString *formatString = [NSDateFormatter dateFormatFromTemplate:@"yyyy-MM-dd HH:mm" options:0 locale:[NSLocale currentLocale]];
  [dateFormatter setDateFormat:formatString];
  myMed.orario = [dateFormatter dateFromString:dateTime];
  NSLog(@"%@",myMed.orario); //This shows NULL
  </code></pre>