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docs/source/development/localisation.md

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+###### Localisation
+
+## Language in url
+
+Language should be present in URL, conventionally as the first argument.
+
+   `/fr/your/url/here`
+
+This allows users to change from one language to another one on each page, which may be useful in multilanguages teams. If the installation is single-language, the language switcher will not appears.
+
+This is an example of routing defined in YAML :
+
+```yaml
+   chill_person_general_edit:
+       pattern: /{_locale}/person/{person_id}/general/edit
+       defaults: {_controller: ChillPersonBundle:Person:edit }
+```
+
+## Date and time
+
+The [Intl extension ](http://twig.sensiolabs.org/doc/extensions/intl.html) is enabled on the Chill application.
+
+You may format date and time using the [localizeddate` function :
+
+   `date|localizeddate('long', 'none')`
+
+By default, we prefer using the `long` format for date formatting.
+
+   [Documentation for Intl Extension](http://twig.sensiolabs.org/doc/extensions/intl.html)
+      Read the complete doc for the Intl extension.