Try to fix UTC problem

default_conf.py

@@ -23,8 +23,7 @@ log_format = '$server_name:$server_port $remote_addr - $remote_user [$time_local
     '"$http_referer" "$http_user_agent"'
 
 # Time format used in log format
-# TOFIX UTC
-time_format = '%d/%b/%Y:%H:%M:%S +0100'
+time_format = '%d/%b/%Y:%H:%M:%S %z'
 
 # Hooks that are loaded at runtime (only set names without path and extensions)
 pre_analysis_hooks = []