this question maybe is duplicated but I didn't find any exact solution for this. I have this type of string that includes date and time.

```
"check_in": "10/25/2019 14:30"

```

I need to extract an hour from it but this is not always a valid format. I tried this pattern so far but it includes the ":" character.

> 
> \d+?(:)
> 
> 
> (\d+:)
> 
> 
> (\d+)\*:
> 
> 
>