diff --git a/app/controllers/activities_controller.rb b/app/controllers/activities_controller.rb
index 0c443a3f3..d4e42a659 100644
--- a/app/controllers/activities_controller.rb
+++ b/app/controllers/activities_controller.rb
@@ -32,16 +32,10 @@ class ActivitiesController < ApplicationController
         )
       )
     end
-    # send last activity date of the previus batch
-    previous_activity = Activity.find_by_id(params[:last_activity])
-    if previous_activity&.created_at
-      previus_date = I18n.l(previous_activity.created_at, format: :full_date)
-    end
     {
       activities: activities,
       more_activities_url: more_url,
-      page: page,
-      previous_activity_created_at: previus_date
+      page: page
     }
   end
 end
diff --git a/app/views/projects/show/_experiment.html.erb b/app/views/projects/show/_experiment.html.erb
index baa2e32de..3bcecb4c0 100644
--- a/app/views/projects/show/_experiment.html.erb
+++ b/app/views/projects/show/_experiment.html.erb
@@ -41,7 +41,7 @@
       <% end %>
       <span class="help_tooltips" data-tooltiplink="<%= I18n.t('tooltips.link.experiment.dates') %>" data-tooltipcontent="<%= I18n.t('tooltips.text.experiment.dates') %>">
         <span class="fas fa-calendar-alt" aria-hidden="true"></span>
-        <%= l(experiment.created_at, format: :full_date) %> - <%= localize(experiment.updated_at, format: :full_date) %>
+        <%= l(experiment.created_at, format: :full_date) %> - <%= l(experiment.updated_at, format: :full_date) %>
       </span>
       <div data-hook="experiment-card-body">
         <% if experiment.description? %>