NSDateFormatter "Month" in 3 letters instead of full word

IF you get the two things in the wrong order, you don't get the expected output.

[formatter setDateFormat:@"MMM"];
[formatter setDateStyle:NSDateFormatterMediumStyle];

does NOT give the same results as:

[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setDateFormat:@"MMM"];

(The second of these two snippets is now happily handing out Sep Oct etc in my app)

Have you tried: [formatter setDateFormat:@"dd-MMM-YYYY HH:mm"]; and then [formatter stringFromDate:someNSDate];