NSDateFormatter *inputDateFormatter = [[NSDateFormatter alloc] init];
NSString *inputDateStr = @"yyyy/MM/dd HH:mm:ss";
[inputDateFormatter setDateFormat:inputDateStr];
NSString *intputDateStr = @"2000/01/02 03:04:05";
NSDate *inputDate = [inputDateFormatter dateFromString:intputDateStr];
NSLog(@"%@ -> %@", inputDateStr, [inputDate description]);
[inputDateFormatter release];

from:http://d.hatena.ne.jp/nakamura001/20100525/1274802305

ps:

http://www.wangdg.com/?p=207

http://blog.163.com/fuxiaohui@126/blog/static/13174582620123234483974/

05-02 22:12