Benzo blackouts are the most clear cut blackouts ever. No feeling of time lost, no amount of cues can bring back any memories, you just wake up and the pills are gone. It doesn't always mean you did something crazy though, you can very well have just had a normal week. And you can learn stuff, you just won't remember learning it. Like if you watch a show you can know what happened on the show a week later but just have no memory of watching it.