diff --git a/app/jobs/order_cycle_opened_job.rb b/app/jobs/order_cycle_opened_job.rb
index bcd0b1bcc4..352b823244 100644
--- a/app/jobs/order_cycle_opened_job.rb
+++ b/app/jobs/order_cycle_opened_job.rb
@@ -43,7 +43,7 @@ class OrderCycleOpenedJob < ApplicationJob
         order_cycle.update_columns(opened_at:, updated_at: opened_at)
 
         # And notify any subscribers
-        OrderCycles::WebhookService.create_webhook_job(order_cycle, 'order_cycle.opened')
+        OrderCycles::WebhookService.create_webhook_job(order_cycle, 'order_cycle.opened', opened_at)
       end
     end
   end
diff --git a/app/jobs/webhook_delivery_job.rb b/app/jobs/webhook_delivery_job.rb
index 1196e6a1d6..6004b0d6f1 100644
--- a/app/jobs/webhook_delivery_job.rb
+++ b/app/jobs/webhook_delivery_job.rb
@@ -13,11 +13,11 @@ class WebhookDeliveryJob < ApplicationJob
 
   queue_as :default
 
-  def perform(url, event, payload)
+  def perform(url, event, payload, at: Time.zone.now)
     body = {
       id: job_id,
-      at: Time.zone.now.to_s,
       event:,
+      at: at.to_s,
       data: payload,
     }
 
diff --git a/app/services/order_cycles/webhook_service.rb b/app/services/order_cycles/webhook_service.rb
index f12c94ea1b..b45c5c6e41 100644
--- a/app/services/order_cycles/webhook_service.rb
+++ b/app/services/order_cycles/webhook_service.rb
@@ -5,9 +5,9 @@
 
 module OrderCycles
   class WebhookService
-    def self.create_webhook_job(order_cycle, event)
+    def self.create_webhook_job(order_cycle, event, at)
       webhook_payload = order_cycle
-        .slice(:id, :name, :orders_open_at, :orders_close_at, :coordinator_id)
+        .slice(:id, :name, :orders_open_at, :opened_at, :orders_close_at, :coordinator_id)
         .merge(coordinator_name: order_cycle.coordinator.name)
 
       # Endpoints for coordinator owner
@@ -17,7 +17,7 @@ module OrderCycles
       webhook_endpoints |= order_cycle.distributors.map(&:owner).flat_map(&:webhook_endpoints)
 
       webhook_endpoints.each do |endpoint|
-        WebhookDeliveryJob.perform_later(endpoint.url, event, webhook_payload)
+        WebhookDeliveryJob.perform_later(endpoint.url, event, webhook_payload, at:)
       end
     end
   end
diff --git a/spec/jobs/webhook_delivery_job_spec.rb b/spec/jobs/webhook_delivery_job_spec.rb
index 0b09ed7bde..5383f5e87c 100644
--- a/spec/jobs/webhook_delivery_job_spec.rb
+++ b/spec/jobs/webhook_delivery_job_spec.rb
@@ -3,9 +3,10 @@
 require 'spec_helper'
 
 RSpec.describe WebhookDeliveryJob do
-  subject { WebhookDeliveryJob.new(url, event, data) }
+  subject { WebhookDeliveryJob.new(url, event, data, at:) }
   let(:url) { 'https://test/endpoint' }
   let(:event) { 'order_cycle.opened' }
+  let(:at) { 1.second.ago }
   let(:data) {
     {
       order_cycle_id: 123, name: "Order cycle 1", open_at: 1.minute.ago.to_s, tags: ["tag1", "tag2"]
@@ -25,7 +26,7 @@ RSpec.describe WebhookDeliveryJob do
     Timecop.freeze do
       expected_body = {
         id: /.+/,
-        at: Time.zone.now.to_s,
+        at: at.to_s,
         event:,
         data:,
       }
diff --git a/spec/services/order_cycles/webhook_service_spec.rb b/spec/services/order_cycles/webhook_service_spec.rb
index 3ab38cd86f..a006d1e68e 100644
--- a/spec/services/order_cycles/webhook_service_spec.rb
+++ b/spec/services/order_cycles/webhook_service_spec.rb
@@ -8,12 +8,14 @@ RSpec.describe OrderCycles::WebhookService do
       :simple_order_cycle,
       name: "Order cycle 1",
       orders_open_at: Time.zone.parse("2022-09-19 09:00:00"),
+      opened_at: Time.zone.parse("2022-09-19 09:00:01"),
       orders_close_at: Time.zone.parse("2022-09-19 17:00:00"),
       coordinator:,
     )
   }
   let(:coordinator) { create :distributor_enterprise, name: "Starship Enterprise" }
-  subject { OrderCycles::WebhookService.create_webhook_job(order_cycle, "order_cycle.opened") }
+  let(:at) { Time.zone.parse("2022-09-19 09:00:02") }
+  subject { OrderCycles::WebhookService.create_webhook_job(order_cycle, "order_cycle.opened", at) }
 
   describe "creating payloads" do
     it "doesn't create webhook payload for enterprise users" do
@@ -44,6 +46,7 @@ RSpec.describe OrderCycles::WebhookService do
           id: order_cycle.id,
           name: "Order cycle 1",
           orders_open_at: Time.zone.parse("2022-09-19 09:00:00"),
+          opened_at: Time.zone.parse("2022-09-19 09:00:01"),
           orders_close_at: Time.zone.parse("2022-09-19 17:00:00"),
           coordinator_id: coordinator.id,
           coordinator_name: "Starship Enterprise",
@@ -51,7 +54,7 @@ RSpec.describe OrderCycles::WebhookService do
 
         expect{ subject }
           .to enqueue_job(WebhookDeliveryJob).exactly(1).times
-          .with("http://coordinator_owner_url", "order_cycle.opened", hash_including(data))
+          .with("http://coordinator_owner_url", "order_cycle.opened", hash_including(data), at:)
       end
     end
 
@@ -87,9 +90,11 @@ RSpec.describe OrderCycles::WebhookService do
 
           expect{ subject }
             .to enqueue_job(WebhookDeliveryJob).with("http://distributor1_owner_url",
-                                                     "order_cycle.opened", hash_including(data))
+                                                     "order_cycle.opened", hash_including(data),
+                                                     at:)
             .and enqueue_job(WebhookDeliveryJob).with("http://distributor2_owner_url",
-                                                      "order_cycle.opened", hash_including(data))
+                                                      "order_cycle.opened", hash_including(data),
+                                                      at:)
         end
       end
 
@@ -137,7 +142,7 @@ RSpec.describe OrderCycles::WebhookService do
 
   context "without webhook subscribed to enterprise" do
     it "doesn't create webhook payload" do
-      expect{ OrderCycles::WebhookService.create_webhook_job(order_cycle, "order_cycle.opened") }
+      expect{ subject }
         .not_to enqueue_job(WebhookDeliveryJob)
     end
   end