In the Apple Docs, they say that NSDateFormatter uses the Unicode for spec. I've read the spec, but I'm having troubles interpreting this date:
NSDateFormatter *frm = [[NSDateFormatter alloc] init];
[frm setDateFormat:@"EEE MMM dd HH:mm:ss ZZZ yyyy"];
NSLog(@"Tue Oct 13 09:24:15 +0000 2009 becomes %@", [frm dateFromString:@"Tue Oct 13 09:24:15 +0000 2009"]);
This code prints out:
2009-10-13 11:37:40.334 test2[1704:20b] Tue Oct 13 09:24:15 +0000 2009 becomes (null)