diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index ab39868802..b9fe1e8e41 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -478,21 +478,6 @@ Rails/CompactBlank:
     - 'lib/reporting/report_ruler.rb'
     - 'lib/reporting/reports/enterprise_fee_summary/parameters.rb'
 
-# Offense count: 27
-# This cop supports safe autocorrection (--autocorrect).
-Rails/DurationArithmetic:
-  Exclude:
-    - 'app/services/create_order_cycle.rb'
-    - 'spec/jobs/order_cycle_closing_job_spec.rb'
-    - 'spec/jobs/order_cycle_opened_job_spec.rb'
-    - 'spec/services/permissions/order_spec.rb'
-    - 'spec/services/terms_of_service_spec.rb'
-    - 'spec/system/admin/bulk_order_management_spec.rb'
-    - 'spec/system/admin/order_cycles/list_spec.rb'
-    - 'spec/system/admin/orders_spec.rb'
-    - 'spec/system/admin/reports/orders_and_fulfillment_spec.rb'
-    - 'spec/system/admin/reports/packing_report_spec.rb'
-
 # Offense count: 1
 # This cop supports safe autocorrection (--autocorrect).
 Rails/ExpandedDateRange:
diff --git a/app/services/create_order_cycle.rb b/app/services/create_order_cycle.rb
index c8f9ce1b18..50900f1c88 100644
--- a/app/services/create_order_cycle.rb
+++ b/app/services/create_order_cycle.rb
@@ -38,7 +38,7 @@ class CreateOrderCycle
       coordinator_id: enterprise.id,
       name: 'Monthly order cycle',
       orders_open_at: Time.zone.now,
-      orders_close_at: Time.zone.now + 1.month
+      orders_close_at: 1.month.from_now
     )
   end
 
diff --git a/spec/jobs/order_cycle_closing_job_spec.rb b/spec/jobs/order_cycle_closing_job_spec.rb
index 1e4ebcf61a..1495fd2111 100644
--- a/spec/jobs/order_cycle_closing_job_spec.rb
+++ b/spec/jobs/order_cycle_closing_job_spec.rb
@@ -4,13 +4,13 @@ require 'spec_helper'
 
 describe OrderCycleClosingJob do
   let(:order_cycle1) {
-    create(:order_cycle, automatic_notifications: true, orders_close_at: Time.zone.now - 1.minute)
+    create(:order_cycle, automatic_notifications: true, orders_close_at: 1.minute.ago)
   }
   let(:order_cycle2) {
-    create(:order_cycle, automatic_notifications: true, orders_close_at: Time.zone.now + 1.minute)
+    create(:order_cycle, automatic_notifications: true, orders_close_at: 1.minute.from_now)
   }
   let(:order_cycle3) {
-    create(:order_cycle, automatic_notifications: false, orders_close_at: Time.zone.now - 1.minute)
+    create(:order_cycle, automatic_notifications: false, orders_close_at: 1.minute.ago)
   }
 
   it "sends notifications for recently closed order cycles with automatic notifications enabled" do
diff --git a/spec/jobs/order_cycle_opened_job_spec.rb b/spec/jobs/order_cycle_opened_job_spec.rb
index 142cc01b0e..948abf5029 100644
--- a/spec/jobs/order_cycle_opened_job_spec.rb
+++ b/spec/jobs/order_cycle_opened_job_spec.rb
@@ -4,13 +4,13 @@ require 'spec_helper'
 
 describe OrderCycleOpenedJob do
   let(:oc_opened_before) {
-    create(:order_cycle, orders_open_at: Time.zone.now - 1.hour)
+    create(:order_cycle, orders_open_at: 1.hour.ago)
   }
   let(:oc_opened_now) {
     create(:order_cycle, orders_open_at: Time.zone.now)
   }
   let(:oc_opening_soon) {
-    create(:order_cycle, orders_open_at: Time.zone.now + 1.minute)
+    create(:order_cycle, orders_open_at: 1.minute.from_now)
   }
 
   it "enqueues jobs for recently opened order cycles only" do
diff --git a/spec/services/permissions/order_spec.rb b/spec/services/permissions/order_spec.rb
index bd664d9140..7eec197dbe 100644
--- a/spec/services/permissions/order_spec.rb
+++ b/spec/services/permissions/order_spec.rb
@@ -23,7 +23,7 @@ module Permissions
     }
     let(:order_from_last_year) {
       create(:completed_order_with_totals, order_cycle: order_cycle, distributor: distributor,
-                                           completed_at: Time.zone.now - 1.year)
+                                           completed_at: 1.year.ago)
     }
 
     before { allow(OpenFoodNetwork::Permissions).to receive(:new) { basic_permissions } }
diff --git a/spec/services/terms_of_service_spec.rb b/spec/services/terms_of_service_spec.rb
index 514f9dfb50..e6e78e4101 100644
--- a/spec/services/terms_of_service_spec.rb
+++ b/spec/services/terms_of_service_spec.rb
@@ -18,8 +18,8 @@ describe TermsOfService do
 
   context "a customer has accepted the platform terms of service" do
     before do
-      allow(customer).to receive(:terms_and_conditions_accepted_at) { Time.zone.now - 1.week }
-      allow(TermsOfServiceFile).to receive(:updated_at) { Time.zone.now - 2.weeks }
+      allow(customer).to receive(:terms_and_conditions_accepted_at) { 1.week.ago }
+      allow(TermsOfServiceFile).to receive(:updated_at) { 2.weeks.ago }
     end
 
     it "should reflect whether the platform TOS have been accepted since the last update" do
@@ -33,9 +33,9 @@ describe TermsOfService do
 
   context "a customer has accepted the distributor terms of service" do
     before do
-      allow(customer).to receive(:terms_and_conditions_accepted_at) { Time.zone.now - 1.week }
+      allow(customer).to receive(:terms_and_conditions_accepted_at) { 1.week.ago }
       allow(distributor).to receive(:terms_and_conditions_blob) {
-        ActiveStorage::Blob.new(created_at: Time.zone.now - 2.weeks)
+        ActiveStorage::Blob.new(created_at: 2.weeks.ago)
       }
     end
 
diff --git a/spec/system/admin/bulk_order_management_spec.rb b/spec/system/admin/bulk_order_management_spec.rb
index 3abeaa61ed..e2f6940ee9 100644
--- a/spec/system/admin/bulk_order_management_spec.rb
+++ b/spec/system/admin/bulk_order_management_spec.rb
@@ -644,12 +644,12 @@ describe '
         }
         let!(:o3) {
           create(:order_with_distributor, state: 'complete', shipment_state: 'ready',
-                                          completed_at: Time.zone.now + 1.week,
+                                          completed_at: 1.week.from_now,
                                           order_cycle: oc3 )
         }
         let!(:o4) {
           create(:order_with_distributor, state: 'complete', shipment_state: 'ready',
-                                          completed_at: Time.zone.now + 2.weeks,
+                                          completed_at: 2.weeks.from_now,
                                           order_cycle: oc3 )
         }
         let!(:li1) { create(:line_item_with_shipment, order: o1 ) }
@@ -658,8 +658,8 @@ describe '
         let!(:li4) { create(:line_item_with_shipment, order: o4 ) }
 
         before do
-          oc3.update!(orders_close_at: Time.zone.now + 2.weeks)
-          oc3.update!(orders_open_at: Time.zone.now + 1.week)
+          oc3.update!(orders_close_at: 2.weeks.from_now)
+          oc3.update!(orders_open_at: 1.week.from_now)
           visit_bulk_order_management
         end
 
diff --git a/spec/system/admin/order_cycles/list_spec.rb b/spec/system/admin/order_cycles/list_spec.rb
index 0db9266341..027cbb2ebc 100644
--- a/spec/system/admin/order_cycles/list_spec.rb
+++ b/spec/system/admin/order_cycles/list_spec.rb
@@ -125,8 +125,8 @@ describe '
   end
 
   describe 'listing order cycles with other locales' do
-    oc_open_at = Time.zone.now - 2.weeks
-    oc_close_at = Time.zone.now + 2.weeks
+    oc_open_at = 2.weeks.ago
+    oc_close_at = 2.weeks.from_now
     let!(:oc_pt) {
       create(:simple_order_cycle, name: 'oc', orders_open_at: oc_open_at,
                                   orders_close_at: oc_close_at)
diff --git a/spec/system/admin/orders_spec.rb b/spec/system/admin/orders_spec.rb
index 2696a84687..f0fa036cbd 100644
--- a/spec/system/admin/orders_spec.rb
+++ b/spec/system/admin/orders_spec.rb
@@ -286,10 +286,10 @@ describe '
     describe "ordering" do
       context "orders with different completion dates" do
         before do
-          order2.update!(completed_at: Time.zone.now - 2.weeks)
-          order3.update!(completed_at: Time.zone.now - 3.weeks)
-          order4.update!(completed_at: Time.zone.now - 4.weeks)
-          order5.update!(completed_at: Time.zone.now - 5.weeks)
+          order2.update!(completed_at: 2.weeks.ago)
+          order3.update!(completed_at: 3.weeks.ago)
+          order4.update!(completed_at: 4.weeks.ago)
+          order5.update!(completed_at: 5.weeks.ago)
           login_as_admin
           visit spree.admin_orders_path
         end
diff --git a/spec/system/admin/reports/orders_and_fulfillment_spec.rb b/spec/system/admin/reports/orders_and_fulfillment_spec.rb
index 9a6642405a..977ea12a82 100644
--- a/spec/system/admin/reports/orders_and_fulfillment_spec.rb
+++ b/spec/system/admin/reports/orders_and_fulfillment_spec.rb
@@ -110,11 +110,11 @@ describe "Orders And Fulfillment" do
       end
 
       context "with two orders on the same day at different times" do
-        let(:completed_at1) { Time.zone.now - 1500.hours } # 1500 hours in the past
-        let(:completed_at2) { Time.zone.now - 1700.hours } # 1700 hours in the past
-        let(:datetime_start1) { Time.zone.now - 1600.hours } # 1600 hours in the past
-        let(:datetime_start2) { Time.zone.now - 1800.hours } # 1600 hours in the past
-        let(:datetime_end) { Time.zone.now - 1400.hours } # 1400 hours in the past
+        let(:completed_at1) { 1500.hours.ago } # 1500 hours in the past
+        let(:completed_at2) { 1700.hours.ago } # 1700 hours in the past
+        let(:datetime_start1) { 1600.hours.ago } # 1600 hours in the past
+        let(:datetime_start2) { 1800.hours.ago } # 1600 hours in the past
+        let(:datetime_end) { 1400.hours.ago } # 1400 hours in the past
         before do
           Timecop.travel(completed_at1) { order1.finalize! }
           Timecop.travel(completed_at2) { order2.finalize! }
diff --git a/spec/system/admin/reports/packing_report_spec.rb b/spec/system/admin/reports/packing_report_spec.rb
index 31e08cf1e5..da86e57936 100644
--- a/spec/system/admin/reports/packing_report_spec.rb
+++ b/spec/system/admin/reports/packing_report_spec.rb
@@ -10,7 +10,7 @@ describe "Packing Reports" do
     Timecop.freeze(Time.zone.now.strftime("%Y-%m-%d 00:00")) { example.run }
   end
 
-  let!(:open_datetime) { (Time.zone.now - 1.month).strftime("%Y-%m-%d 00:00") }
+  let!(:open_datetime) { 1.month.ago.strftime("%Y-%m-%d 00:00") }
   let!(:close_datetime) { Time.zone.now.strftime("%Y-%m-%d 00:00") }
 
   describe "Packing reports" do