Redmine

• default: "%a, %d %b %Y, %H:%M:%S %z"
• short: "%d %b, %H:%M"
• long: "%d %B %Y, %H:%M"

and don't have format named "time"

:format => (include_date ? :default : :time)

what why ::I18n.l() method return a string with value "time"

the simply stupid fix this problem is a patch RAILS_ROOT/lib/redmine/i18n.rb

I have decided what I use the short format

lustin@device:~/redmine/lib/redmine$ svn diff
Index: i18n.rb
===================================================================
--- i18n.rb    (revision 2521)
+++ i18n.rb    (working copy)
@@ -45,7 +45,7 @@
       time = time.to_time if time.is_a?(String)
       zone = User.current.time_zone
       local = zone ? time.in_time_zone(zone) : (time.utc? ? time.localtime : time)
-      Setting.time_format.blank? ? ::I18n.l(local, :format => (include_date ? :default : :time)) : 
+      Setting.time_format.blank? ? ::I18n.l(local, :format => (include_date ? :default : :short)) :
                                    ((include_date ? "#{format_date(time)} " : "") + "#{local.strftime(Setting.time_format)}")
     end