lib/rufus/scheduler/zotime.rb in rufus-scheduler-3.3.3 vs lib/rufus/scheduler/zotime.rb in rufus-scheduler-3.3.4

@@ -39,10 +39,13 @@
       @zone = self.class.get_tzone(zone || :current)
 
       fail ArgumentError.new(
         "cannot determine timezone from #{zone.inspect}" +
         " (etz:#{ENV['TZ'].inspect},tnz:#{Time.now.zone.inspect}," +
-        "tzid:#{defined?(TZInfo::Data).inspect})"
+        "tzid:#{defined?(TZInfo::Data).inspect})\n" +
+        "Try setting `ENV['TZ'] = 'Continent/City'` in your script " +
+        "(see https://en.wikipedia.org/wiki/List_of_tz_database_time_zones)" +
+        (defined?(TZInfo::Data) ? '' : " and adding 'tzinfo-data' to your gems")
       ) unless @zone
 
       @time = nil # cache for #to_time result
     end