Fix date on blog list

layouts/blog/list.html

@@ -9,7 +9,7 @@
         <h1 class="title">{{ .Title }}</h1>
         <p>{{ .Content }}</p>
     {{- range .Pages }}
-        <p> <a href="{{ .Permalink }}">{{ .Title }}</a> <span>{{ .Date.Day }}. {{ if eq .Params.lang "de"}} {{ index $.Site.Data.monate (printf "%d" .Date.Month) }} {{ else }} {{ .Date.Month }} {{ end }} {{ .Date.Year }}</span> </p>
+        <p> <a href="{{ .Permalink }}">{{ .Title }}</a> <span>{{ .Date | time.Format ":date_long" }}</span> </p>
     {{- end }}
     </main>