NSLocale *locale = [NSLocale currentLocale];
NSLog(@"Current Locale : %@", [locale localeIdentifier]);

NSDate *today = [NSDate date];
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"EEEE MMMM d, YYYY HH:mm"];
[dateFormat setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"ko_KR"]];
NSString *dateString = [dateFormat stringFromDate:today];
NSLog(@"Today : %@", dateString);