I have this `String` :

```
05/09/2013 23:23

```

And i want to convert it to `DateTime` with this:

```
DateTime alarmDateTime = new DateTime();
alarmDateTime = DateTime.ParseExact(date, "MM/dd/YYYY HH:mm", null);

```

And i get this Exception:

```
String was not recognized as a valid DateTime.

```

Any idea why it happens?