I am trying to get date\_format validation going on in my laravel application. Its an api and get datetime in the format 

```
2015-10-09T12:36:576+01:00

```

It is supposed to be IOS 8601 format so I was checking it against the format 
 `"Y-m-d\TH:i:sO"` by using

```
'createdAt'  => "required|date_format:Y-m-d\TH:i:sO",

```

But the validation fails. I am pretty sure that I am wrong in the format for the date(which I got from the official php documentation meaning the format for the data is not ISO 8601). Could someone please tell me what format that date is in?

Thanks