diff --git a/lib/sorcery/model/submodules/activity_logging.rb b/lib/sorcery/model/submodules/activity_logging.rb
index 0ce6cfbd..552c9b6f 100644
--- a/lib/sorcery/model/submodules/activity_logging.rb
+++ b/lib/sorcery/model/submodules/activity_logging.rb
@@ -39,12 +39,12 @@ def current_users
           protected
 
           def define_activity_logging_mongoid_fields
-            field sorcery_config.last_login_at_attribute_name,    :type => DateTime
-            field sorcery_config.last_logout_at_attribute_name,   :type => DateTime
-            field sorcery_config.last_activity_at_attribute_name, :type => DateTime
+            field sorcery_config.last_login_at_attribute_name,    :type => Time
+            field sorcery_config.last_logout_at_attribute_name,   :type => Time
+            field sorcery_config.last_activity_at_attribute_name, :type => Time
           end
         end
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/sorcery/model/submodules/brute_force_protection.rb b/lib/sorcery/model/submodules/brute_force_protection.rb
index 59dd86f6..78229d1d 100644
--- a/lib/sorcery/model/submodules/brute_force_protection.rb
+++ b/lib/sorcery/model/submodules/brute_force_protection.rb
@@ -38,12 +38,12 @@ module ClassMethods
 
           def define_brute_force_protection_mongoid_fields
             field sorcery_config.failed_logins_count_attribute_name,  :type => Integer
-            field sorcery_config.lock_expires_at_attribute_name,      :type => DateTime
+            field sorcery_config.lock_expires_at_attribute_name,      :type => Time
           end
 
           def define_brute_force_protection_mongo_mapper_fields
             key sorcery_config.failed_logins_count_attribute_name, Integer
-            key sorcery_config.lock_expires_at_attribute_name, DateTime
+            key sorcery_config.lock_expires_at_attribute_name, Time
           end
         end
         
diff --git a/lib/sorcery/model/submodules/reset_password.rb b/lib/sorcery/model/submodules/reset_password.rb
index a06afc68..1cb292b6 100644
--- a/lib/sorcery/model/submodules/reset_password.rb
+++ b/lib/sorcery/model/submodules/reset_password.rb
@@ -72,13 +72,12 @@ def validate_mailer_defined
 
           def define_reset_password_mongoid_fields
             field sorcery_config.reset_password_token_attribute_name,             :type => String
-            field sorcery_config.reset_password_token_expires_at_attribute_name,  :type => DateTime
-            field sorcery_config.reset_password_email_sent_at_attribute_name,     :type => DateTime
+            field sorcery_config.reset_password_token_expires_at_attribute_name,  :type => Time
+            field sorcery_config.reset_password_email_sent_at_attribute_name,     :type => Time
           end
           
           def define_reset_password_mongo_mapper_fields
             key sorcery_config.reset_password_token_attribute_name, String
-            # no DateTime in MM
             key sorcery_config.reset_password_token_expires_at_attribute_name, Time
             key sorcery_config.reset_password_email_sent_at_attribute_name, Time
           end
diff --git a/lib/sorcery/model/submodules/user_activation.rb b/lib/sorcery/model/submodules/user_activation.rb
index 734529a2..c5dae600 100644
--- a/lib/sorcery/model/submodules/user_activation.rb
+++ b/lib/sorcery/model/submodules/user_activation.rb
@@ -84,7 +84,7 @@ def define_user_activation_mongoid_fields
             self.class_eval do
               field sorcery_config.activation_state_attribute_name,            :type => String
               field sorcery_config.activation_token_attribute_name,            :type => String
-              field sorcery_config.activation_token_expires_at_attribute_name, :type => DateTime
+              field sorcery_config.activation_token_expires_at_attribute_name, :type => Time
             end
           end
 
@@ -92,7 +92,6 @@ def define_user_activation_mongo_mapper_fields
             self.class_eval do
               key sorcery_config.activation_state_attribute_name, String
               key sorcery_config.activation_token_attribute_name, String
-              # no DateTime in MM
               key sorcery_config.activation_token_expires_at_attribute_name, Time
             end
           end