I have heard it in this video. It is at 2 minute and 19 second. Here is the context:
[Gill] So, David, you have been here for a while now, haven't you?
[Gill] I remember the place gradually being decorated and open.
[David] Yeah, well, we met I would imagine sometime around about May 2015 and we opened in July 2015.
[Gill] Right, That sounds about right.
Does Gill mean that she is not completely sure if the date was right for opening?