Anybody? No replies?

I dont understand your question.
but I use
begin of routes.php

setlocale(LC_ALL, "es_ES.UTF-8");  

and in views:

{{ ucwords(strftime("%A, %d %B %Y - %H:%M",strtotime($comentario->created_at))) }}

I think it also depends of your system locale (linux)

javi@desarrollo:/var/www/laravel$ locale
LANG=es_ES.UTF-8
LANGUAGE=
LC_CTYPE="es_ES.UTF-8"
LC_NUMERIC="es_ES.UTF-8"
LC_TIME="es_ES.UTF-8"
LC_COLLATE="es_ES.UTF-8"
LC_MONETARY="es_ES.UTF-8"
LC_MESSAGES="es_ES.UTF-8"
LC_PAPER="es_ES.UTF-8"
LC_NAME="es_ES.UTF-8"
LC_ADDRESS="es_ES.UTF-8"
LC_TELEPHONE="es_ES.UTF-8"
LC_MEASUREMENT="es_ES.UTF-8"
LC_IDENTIFICATION="es_ES.UTF-8"
LC_ALL=
javi@desarrollo:/var/www/laravel$