Localize default lang and timezone in pelican-quickstart

Fixes #1971.

docs/quickstart.rst

@@ -28,8 +28,9 @@ by asking some questions about your site::
     pelican-quickstart
 
 For questions that have default values denoted in brackets, feel free to use
-the Return key to accept those default values. When asked for your URL prefix,
+the Return key to accept those default values [#tzlocal_fn]_. When asked for
-enter your domain name as indicated (e.g., ``http://example.com``).
+your URL prefix, enter your domain name as indicated (e.g.,
+``http://example.com``).
 
 Create an article
 -----------------
@@ -72,3 +73,10 @@ Continue reading the other documentation sections for more detail, and check out
 the Pelican wiki's Tutorials_ page for links to community-published tutorials.
 
 .. _Tutorials: https://github.com/getpelican/pelican/wiki/Tutorials
+
+Footnotes
+---------
+
+.. [#tzlocal_fn] You can help localize default fields by installing the
+                 optional `tzlocal <https://pypi.python.org/pypi/tzlocal>`_
+                 module.

pelican/tools/pelican_quickstart.py

@@ -4,12 +4,19 @@ from __future__ import print_function, unicode_literals
 
 import argparse
 import codecs
+import locale
 import os
 import string
 import sys
 
 import pytz
 
+try:
+    import tzlocal
+    _DEFAULT_TIMEZONE = tzlocal.get_localzone().zone
+except:
+    _DEFAULT_TIMEZONE = 'Europe/Paris'
+
 import six
 
 from pelican import __version__
@@ -42,8 +49,8 @@ CONF = {
     'github_pages_branch': _GITHUB_PAGES_BRANCHES['project'],
     'default_pagination': 10,
     'siteurl': '',
-    'lang': 'en',
+    'lang': locale.getlocale()[0].split('_')[0],
-    'timezone': 'Europe/Paris'
+    'timezone': _DEFAULT_TIMEZONE
 }
 
 # url for list of valid timezones