diff --git a/app/services/post_status_service.rb b/app/services/post_status_service.rb
index e4dd480f10..280666dcf7 100644
--- a/app/services/post_status_service.rb
+++ b/app/services/post_status_service.rb
@@ -171,7 +171,7 @@ class PostStatusService < BaseService
   end
 
   def scheduled_in_the_past?
-    @scheduled_at.present? && @scheduled_at <= Time.now.utc + MIN_SCHEDULE_OFFSET
+    @scheduled_at.present? && @scheduled_at <= Time.now.utc
   end
 
   def bump_potential_friendship!
diff --git a/spec/controllers/api/v1/statuses_controller_spec.rb b/spec/controllers/api/v1/statuses_controller_spec.rb
index c2bdba9ace..591307fe22 100644
--- a/spec/controllers/api/v1/statuses_controller_spec.rb
+++ b/spec/controllers/api/v1/statuses_controller_spec.rb
@@ -182,6 +182,46 @@ RSpec.describe Api::V1::StatusesController do
           expect(response.headers['X-RateLimit-Remaining']).to eq '0'
         end
       end
+
+      context 'with missing thread' do
+        subject { post :create, params: params }
+
+        let(:params) { { status: 'Hello world', in_reply_to_id: 0 } }
+
+        it 'returns http not found' do
+          subject
+
+          expect(response).to have_http_status(404)
+        end
+      end
+
+      context 'when scheduling a status' do
+        subject { post :create, params: params }
+
+        let(:params) { { status: 'Hello world', scheduled_at: 10.minutes.from_now } }
+        let(:account) { user.account }
+
+        it 'returns HTTP 200' do
+          subject
+
+          expect(response).to have_http_status(200)
+        end
+
+        it 'creates a scheduled status' do
+          expect { subject }.to change { account.scheduled_statuses.count }.from(0).to(1)
+        end
+
+        context 'when the scheduling time is less than 5 minutes' do
+          let(:params) { { status: 'Hello world', scheduled_at: 4.minutes.from_now } }
+
+          it 'does not create a scheduled status', :aggregate_failures do
+            subject
+
+            expect(response).to have_http_status(422)
+            expect(account.scheduled_statuses).to be_empty
+          end
+        end
+      end
     end
 
     describe 'DELETE #destroy' do
diff --git a/spec/services/post_status_service_spec.rb b/spec/services/post_status_service_spec.rb
index a74e826261..826af54794 100644
--- a/spec/services/post_status_service_spec.rb
+++ b/spec/services/post_status_service_spec.rb
@@ -61,6 +61,16 @@ RSpec.describe PostStatusService, type: :service do
       status2 = subject.call(account, text: 'test', idempotency: 'meepmeep', scheduled_at: future)
       expect(status2.id).to eq status1.id
     end
+
+    context 'when scheduled_at is less than min offset' do
+      let(:invalid_scheduled_time) { 4.minutes.from_now }
+
+      it 'raises invalid record error' do
+        expect do
+          subject.call(account, text: 'Hi future!', scheduled_at: invalid_scheduled_time)
+        end.to raise_error(ActiveRecord::RecordInvalid)
+      end
+    end
   end
 
   it 'creates response to the original status of boost' do