diff --git a/addons/hr_work_entry_contract/models/hr_contract.py b/addons/hr_work_entry_contract/models/hr_contract.py
index d3c4eff144f..bcbe9701d51 100644
--- a/addons/hr_work_entry_contract/models/hr_contract.py
+++ b/addons/hr_work_entry_contract/models/hr_contract.py
@@ -90,6 +90,22 @@ class HrContract(models.Model):
             ))
         return result
 
+    def _get_lunch_intervals(self, start_dt, end_dt):
+        # {resource: intervals}
+        employees_by_calendar = defaultdict(lambda: self.env['hr.employee'])
+        for contract in self:
+            employees_by_calendar[contract.resource_calendar_id] |= contract.employee_id
+        result = {}
+        for calendar, employees in employees_by_calendar.items():
+            result.update(calendar._attendance_intervals_batch(
+                start_dt,
+                end_dt,
+                resources=employees.resource_id,
+                tz=pytz.timezone(calendar.tz),
+                lunch=True,
+            ))
+        return result
+
     def _get_interval_work_entry_type(self, interval):
         self.ensure_one()
         if 'work_entry_type_id' in interval[2] and interval[2].work_entry_type_id[:1]:
diff --git a/addons/resource/models/resource_calendar.py b/addons/resource/models/resource_calendar.py
index 1449499e522..16fcfee5068 100644
--- a/addons/resource/models/resource_calendar.py
+++ b/addons/resource/models/resource_calendar.py
@@ -269,7 +269,7 @@ class ResourceCalendar(models.Model):
     # Computation API
     # --------------------------------------------------
 
-    def _attendance_intervals_batch(self, start_dt, end_dt, resources=None, domain=None, tz=None):
+    def _attendance_intervals_batch(self, start_dt, end_dt, resources=None, domain=None, tz=None, lunch=False):
         assert start_dt.tzinfo and end_dt.tzinfo
         self.ensure_one()
 
@@ -284,7 +284,7 @@ class ResourceCalendar(models.Model):
             ('calendar_id', '=', self.id),
             ('resource_id', 'in', resource_ids),
             ('display_type', '=', False),
-            ('day_period', '!=', 'lunch'),
+            ('day_period', '!=' if not lunch else '=', 'lunch'),
         ]])
 
         attendances = self.env['resource.calendar.attendance'].search(domain)