diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 9d91e91f0..41526f321 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -813,7 +813,7 @@ condition example
         query += "#{attribute} >= ?"
         bind_params.push selector['value']
       elsif selector['operator'] == 'within last (relative)'
-        query += "#{attribute} >= ?"
+        query += "#{attribute} BETWEEN ? AND ?"
         time = nil
         case selector['range']
         when 'minute'
@@ -830,8 +830,9 @@ condition example
           raise "Unknown selector attributes '#{selector.inspect}'"
         end
         bind_params.push time
+        bind_params.push Time.zone.now
       elsif selector['operator'] == 'within next (relative)'
-        query += "#{attribute} <= ?"
+        query += "#{attribute} BETWEEN ? AND ?"
         time = nil
         case selector['range']
         when 'minute'
@@ -847,6 +848,7 @@ condition example
         else
           raise "Unknown selector attributes '#{selector.inspect}'"
         end
+        bind_params.push Time.zone.now
         bind_params.push time
       elsif selector['operator'] == 'before (relative)'
         query += "#{attribute} <= ?"
diff --git a/spec/models/ticket_spec.rb b/spec/models/ticket_spec.rb
index 8ad3328d8..a60d34ac1 100644
--- a/spec/models/ticket_spec.rb
+++ b/spec/models/ticket_spec.rb
@@ -828,6 +828,76 @@ RSpec.describe Ticket, type: :model do
             .to change { ticket.reload.escalation_at }.to(nil)
         end
       end
+
+      context 'when within last (relative)' do
+        let(:first_response_time) { 5 }
+        let(:sla) { create(:sla, calendar: calendar, first_response_time: first_response_time) }
+        let(:within_condition) do
+          { 'ticket.escalation_at'=>{ 'operator' => 'within last (relative)', 'value' => '30', 'range' => 'minute' } }
+        end
+
+        before do
+          sla
+
+          travel_to '2020-11-05 11:37:00'
+
+          ticket = create(:ticket)
+          create(:ticket_article, :inbound_email, ticket: ticket)
+
+          travel_to '2020-11-05 11:50:00'
+        end
+
+        context 'when in range' do
+          it 'does find the ticket' do
+            count, _tickets = described_class.selectors(within_condition, limit: 2_000, execution_time: true)
+            expect(count).to eq(1)
+          end
+        end
+
+        context 'when out of range' do
+          let(:first_response_time) { 500 }
+
+          it 'does not find the ticket' do
+            count, _tickets = described_class.selectors(within_condition, limit: 2_000, execution_time: true)
+            expect(count).to eq(0)
+          end
+        end
+      end
+
+      context 'when within next (relative)' do
+        let(:first_response_time) { 5 }
+        let(:sla) { create(:sla, calendar: calendar, first_response_time: first_response_time) }
+        let(:within_condition) do
+          { 'ticket.escalation_at'=>{ 'operator' => 'within next (relative)', 'value' => '30', 'range' => 'minute' } }
+        end
+
+        before do
+          sla
+
+          travel_to '2020-11-05 11:50:00'
+
+          ticket = create(:ticket)
+          create(:ticket_article, :inbound_email, ticket: ticket)
+
+          travel_to '2020-11-05 11:37:00'
+        end
+
+        context 'when in range' do
+          it 'does find the ticket' do
+            count, _tickets = described_class.selectors(within_condition, limit: 2_000, execution_time: true)
+            expect(count).to eq(1)
+          end
+        end
+
+        context 'when out of range' do
+          let(:first_response_time) { 500 }
+
+          it 'does not find the ticket' do
+            count, _tickets = described_class.selectors(within_condition, limit: 2_000, execution_time: true)
+            expect(count).to eq(0)
+          end
+        end
+      end
     end
 
     describe '#first_response_escalation_at' do
diff --git a/test/unit/ticket_selector_test.rb b/test/unit/ticket_selector_test.rb
index f79577a10..a64a22245 100644
--- a/test/unit/ticket_selector_test.rb
+++ b/test/unit/ticket_selector_test.rb
@@ -409,29 +409,6 @@ class TicketSelectorTest < ActiveSupport::TestCase
     ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer2)
     assert_equal(ticket_count, 2)
 
-    condition = {
-      'ticket.group_id'   => {
-        operator: 'is',
-        value:    @group.id,
-      },
-      'ticket.created_at' => {
-        operator: 'within next (relative)',
-        range:    'year', # minute|hour|day|month|
-        value:    '10',
-      },
-    }
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @agent1)
-    assert_equal(ticket_count, 3)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @agent2)
-    assert_equal(ticket_count, 0)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer1)
-    assert_equal(ticket_count, 1)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer2)
-    assert_equal(ticket_count, 2)
-
     condition = {
       'ticket.group_id'   => {
         operator: 'is',
@@ -567,29 +544,6 @@ class TicketSelectorTest < ActiveSupport::TestCase
     ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer2)
     assert_equal(ticket_count, 0)
 
-    condition = {
-      'ticket.group_id'   => {
-        operator: 'is',
-        value:    @group.id,
-      },
-      'ticket.updated_at' => {
-        operator: 'within next (relative)',
-        range:    'year', # minute|hour|day|month|
-        value:    '10',
-      },
-    }
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @agent1)
-    assert_equal(ticket_count, 3)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @agent2)
-    assert_equal(ticket_count, 0)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer1)
-    assert_equal(ticket_count, 1)
-
-    ticket_count, tickets = Ticket.selectors(condition, limit: 10, current_user: @customer2)
-    assert_equal(ticket_count, 2)
-
     condition = {
       'ticket.group_id'   => {
         operator: 'is',