Fixed problem with timezones on some systems

templates/basic-lists/serieslist.html

@@ -7,7 +7,7 @@ <h2>Lecture Series</h2>
 	<tr>
 		<td style="border-left: 8px solid #{{ s.color}}">{{ (s['contributor'] or [''])[0] }}</td>
 		<td>{{ ', '.join(s['creator'] or ['']) }}</td>
-		<td>{{ s['date'].strftime('%a, %d %b %Y %H:%M:%S %Z') }}</td>
+		<td>{{ s['date'].strftime('%a, %d %b %Y %H:%M:%S') if s.get('date') else '' }}</td>
 		<td><a href="{{ url_for('series', id=s.id) }}"> {{ s.title }}</a></td>
 	</tr>
 	{% else %}