diff --git a/addons/hr_attendance/report/timesheet.py b/addons/hr_attendance/report/timesheet.py
index 1465be81bc8..096de11664e 100644
--- a/addons/hr_attendance/report/timesheet.py
+++ b/addons/hr_attendance/report/timesheet.py
@@ -41,8 +41,8 @@ class report_custom(report_rml):
         
         start_date = datetime.strptime(datas['form']['init_date'], '%Y-%m-%d')
         end_date = datetime.strptime(datas['form']['end_date'], '%Y-%m-%d')
-        first_monday = start_date - relativedelta(days=start_date.day_of_week)
-        last_monday = end_date + relativedelta(days=7 - end_date.day_of_week)
+        first_monday = start_date - relativedelta(days=start_date.date().weekday())
+        last_monday = end_date + relativedelta(days=7 - end_date.date().weekday())
         
         if last_monday < first_monday:
             first_monday, last_monday = last_monday, first_monday
@@ -82,7 +82,7 @@ class report_custom(report_rml):
                     for att in attendances:
                         dt = datetime.strptime(att['name'], '%Y-%m-%d %H:%M:%S')
                         if att['action'] == 'sign_out':
-                            week_wh[ldt.day_of_week] = week_wh.get(ldt.day_of_week, 0) + (dt - ldt).hours
+                            week_wh[ldt.date().weekday()] = week_wh.get(ldt.date().weekday(), 0) + (dt - ldt).hours
                         ldt = dt
 
                 # Week xml representation