diff --git a/addons/crm/report/crm_lead_report_view.xml b/addons/crm/report/crm_lead_report_view.xml
index c37c7bcec57..f93dde0560b 100644
--- a/addons/crm/report/crm_lead_report_view.xml
+++ b/addons/crm/report/crm_lead_report_view.xml
@@ -78,7 +78,7 @@
                             domain="[('create_date','<=', time.strftime('%%Y-%%m-%%d')),('create_date','>=',time.strftime('%%Y-%%m-01'))]"
                             help="Leads/Opportunities created in current month"/>
                         <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Leads/Opportunities created in last month"/>
                             
                         <separator orientation="vertical" />
diff --git a/addons/crm/report/crm_phonecall_report_view.xml b/addons/crm/report/crm_phonecall_report_view.xml
index 0f5452ad736..1bd1bb8a922 100644
--- a/addons/crm/report/crm_phonecall_report_view.xml
+++ b/addons/crm/report/crm_phonecall_report_view.xml
@@ -83,7 +83,7 @@
                            help="Phone calls made in current month"/>
 
                        <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Phone calls made in last month"/>
 
                            <separator orientation="vertical" />
diff --git a/addons/crm_claim/report/crm_claim_report_view.xml b/addons/crm_claim/report/crm_claim_report_view.xml
index 5eeecf3d3ad..76debbf2c96 100644
--- a/addons/crm_claim/report/crm_claim_report_view.xml
+++ b/addons/crm_claim/report/crm_claim_report_view.xml
@@ -86,7 +86,7 @@
                            help="Claims created in current month"/>
 
                        <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Claims created in last month"/>
 
                            <separator orientation="vertical" />
diff --git a/addons/crm_fundraising/report/crm_fundraising_report_view.xml b/addons/crm_fundraising/report/crm_fundraising_report_view.xml
index ab90f7ad0c1..c15c73e5838 100644
--- a/addons/crm_fundraising/report/crm_fundraising_report_view.xml
+++ b/addons/crm_fundraising/report/crm_fundraising_report_view.xml
@@ -85,7 +85,7 @@
                     	   help="Funds raised in current month"/>
 
                        <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Funds raised in last month"/>
 
                    		<separator orientation="vertical" />
diff --git a/addons/crm_helpdesk/report/crm_helpdesk_report_view.xml b/addons/crm_helpdesk/report/crm_helpdesk_report_view.xml
index 9490172e3e8..d9a1605838c 100644
--- a/addons/crm_helpdesk/report/crm_helpdesk_report_view.xml
+++ b/addons/crm_helpdesk/report/crm_helpdesk_report_view.xml
@@ -83,7 +83,7 @@
                             domain="[('create_date','&lt;=', time.strftime('%%Y-%%m-%%d')),('create_date','&gt;=',time.strftime('%%Y-%%m-01'))]"
                             help="Helpdesk requests occurred in current month"/>
                         <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Helpdesk requests occurred in last month"/>
 
                    		<separator orientation="vertical" />
diff --git a/addons/hr_evaluation/report/hr_evaluation_report_view.xml b/addons/hr_evaluation/report/hr_evaluation_report_view.xml
index 59dade23d6f..b656838f721 100644
--- a/addons/hr_evaluation/report/hr_evaluation_report_view.xml
+++ b/addons/hr_evaluation/report/hr_evaluation_report_view.xml
@@ -51,7 +51,8 @@
                     	domain="[('create_date','&lt;=', time.strftime('%%Y-%%m-%%d')),('create_date','&gt;=',time.strftime('%%Y-01-01'))]" help="Evaluation done in current year"/>
                     <filter icon="terp-go-month" string=" Month " name="month" domain="[('create_date','&lt;=', time.strftime('%%Y-%%m-%%d')),('create_date','&gt;=',time.strftime('%%Y-%%m-01'))]" help="Evaluation done in current month"/>
 	                <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                        domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]" help="Evaluation done in last month"/>
+                        domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
+                        help="Evaluation done in last month"/>
                     <separator orientation="vertical"/>
 	                <filter string="In Progress" icon="terp-camera_test" domain="[('state', '=' ,'wait')]"
 	                	help = "In progress Evaluations"/>
diff --git a/addons/hr_expense/report/hr_expense_report_view.xml b/addons/hr_expense/report/hr_expense_report_view.xml
index 3de4776b29f..2d7f3092c98 100644
--- a/addons/hr_expense/report/hr_expense_report_view.xml
+++ b/addons/hr_expense/report/hr_expense_report_view.xml
@@ -61,7 +61,8 @@
                       domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-%%m-01'))]"
                       help="Expenses during current month"/>
                 <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                      domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]" help="Expenses during last month"/>
+                      domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
+                      help="Expenses during last month"/>
                   <separator orientation="vertical"/>
                     <filter string="Waiting" icon="terp-gtk-media-pause" domain="[('state', '=' ,'confirm')]"
                     help = "Confirm Expenses"/>
diff --git a/addons/hr_holidays/report/available_holidays_view.xml b/addons/hr_holidays/report/available_holidays_view.xml
index b4cb2a99b7a..f9bdb6fd35a 100644
--- a/addons/hr_holidays/report/available_holidays_view.xml
+++ b/addons/hr_holidays/report/available_holidays_view.xml
@@ -52,7 +52,9 @@
 	            	<group>
 						<filter icon="terp-go-year" string=" Year " domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-01-01'))]" help="Available Leaves of current year"/>
 						<filter icon="terp-go-month" string=" Month " name="month" domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-%%m-01'))]" help="Available Leaves of current month"/>
-						<filter icon="terp-go-month" string="    Month-1    " separator="1" domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]" help="Available Leaves of last month"/>
+						<filter icon="terp-go-month" string="    Month-1    " separator="1" 
+                                domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
+						        help="Available Leaves of last month"/>
 						<separator orientation="vertical"/>
 						<filter string="Validated" icon="terp-camera_test" domain="[('state','=','validate')]"/>
 		                <separator orientation="vertical"/>
diff --git a/addons/hr_holidays/report/hr_holidays_report_view.xml b/addons/hr_holidays/report/hr_holidays_report_view.xml
index e2ffc0fc0e9..9c61f074677 100644
--- a/addons/hr_holidays/report/hr_holidays_report_view.xml
+++ b/addons/hr_holidays/report/hr_holidays_report_view.xml
@@ -50,7 +50,8 @@
                     	domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-01-01'))]" help="Leaves taken in current year"/>
                     <filter icon="terp-go-month" string=" Month " name="month" domain="[('date','&lt;=', time.strftime('%%Y-%%m-%%d')),('date','&gt;=',time.strftime('%%Y-%%m-01'))]" help="Leaves taken in current month"/>
 	                <filter icon="terp-go-month" string="    Month-1    " separator="1"
-                       domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]" help="Leaves taken in last month"/>
+                       domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
+                       help="Leaves taken in last month"/>
 	                <separator orientation="vertical"/>
 	                <filter string="Future Leaves" icon="terp-gtk-media-pause" domain="[('state', 'in' ,('draft','confirm'))]"
 	                	help = "Draft and Confirmed leaves"/>
diff --git a/addons/hr_recruitment/report/hr_recruitment_report_view.xml b/addons/hr_recruitment/report/hr_recruitment_report_view.xml
index d29ecabefb0..ac304567867 100644
--- a/addons/hr_recruitment/report/hr_recruitment_report_view.xml
+++ b/addons/hr_recruitment/report/hr_recruitment_report_view.xml
@@ -60,7 +60,7 @@
 		            <filter icon="terp-go-month"
 	                    string="    Month-1    "
 	                    separator="1"
-	                    domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+	                    domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
 	                    help="Recruitment during last month"/>
 	                <separator orientation="vertical"/>
 	                <filter string="New"
diff --git a/addons/hr_timesheet_sheet/report/hr_timesheet_report_view.xml b/addons/hr_timesheet_sheet/report/hr_timesheet_report_view.xml
index 05cba7f1e49..22863a85288 100644
--- a/addons/hr_timesheet_sheet/report/hr_timesheet_report_view.xml
+++ b/addons/hr_timesheet_sheet/report/hr_timesheet_report_view.xml
@@ -51,7 +51,7 @@
                             help="Timesheet in current month"/>
                         <filter icon="terp-go-month"
                             string=" Month-1 "
-                            domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                             help="Timesheet of last month"/>
                         <separator orientation="vertical"/>
                             <field name="account_id" groups="analytic.group_analytic_accounting"/>
diff --git a/addons/idea/report/report_vote_view.xml b/addons/idea/report/report_vote_view.xml
index c68c829794b..44b2735ea95 100644
--- a/addons/idea/report/report_vote_view.xml
+++ b/addons/idea/report/report_vote_view.xml
@@ -38,7 +38,7 @@
                         <filter icon="terp-go-month"
                              string="    Month-1    "
                              separator="1"
-                             domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                             domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                              help="Idea Vote created last month"/>
                          <separator orientation="vertical"/>
                          <filter icon="terp-go-today"
diff --git a/addons/lunch/lunch_view.xml b/addons/lunch/lunch_view.xml
index 0ecdea5c017..a2cbe64bda6 100644
--- a/addons/lunch/lunch_view.xml
+++ b/addons/lunch/lunch_view.xml
@@ -374,7 +374,7 @@
                         <filter icon="terp-go-month"
                          string="    Month-1    "
                          separator="1"
-                         domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                         domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                          help="Box amount in last month"/>
                     <separator orientation="vertical"/>
                         <field name="user_id" select="1"/>
diff --git a/addons/project/report/project_report_view.xml b/addons/project/report/project_report_view.xml
index cb30a4b861c..2dd6753bc01 100644
--- a/addons/project/report/project_report_view.xml
+++ b/addons/project/report/project_report_view.xml
@@ -68,7 +68,7 @@
 		                <filter icon="terp-go-week"
 	                            string="    Month-1    "
 	                            separator="1"
-	                            domain="[('date_start','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date_start','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                                domain="[('date_start','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date_start','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
 	                            help="Previous Month"/>
 	                    <separator orientation="vertical"/>
 	                    <filter string="Draft"
diff --git a/addons/project_issue/report/project_issue_report_view.xml b/addons/project_issue/report/project_issue_report_view.xml
index 365f217dee4..050d9d986e6 100644
--- a/addons/project_issue/report/project_issue_report_view.xml
+++ b/addons/project_issue/report/project_issue_report_view.xml
@@ -62,7 +62,7 @@
                         domain="[('create_date','&lt;=', time.strftime('%%Y-%%m-%%d')),('create_date','&gt;=',time.strftime('%%Y-%%m-01'))]"                           
                         />
                        <filter icon="terp-go-week" string="Month-1" separator="1" help="Previous Month"
-                            domain="[('create_date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                            domain="[('create_date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('create_date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                         />
 
                            <separator orientation="vertical" />
diff --git a/addons/purchase/report/purchase_report_view.xml b/addons/purchase/report/purchase_report_view.xml
index 816efd65ac3..caac05a0e25 100644
--- a/addons/purchase/report/purchase_report_view.xml
+++ b/addons/purchase/report/purchase_report_view.xml
@@ -63,7 +63,7 @@
                 <filter icon="terp-go-month"
                  string="    Month-1    "
                  separator="1"
-                 domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                 domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                  help="Order in last month"/>
                 <separator orientation="vertical"/>
                 <filter icon="terp-document-new"
diff --git a/addons/sale/report/sale_report_view.xml b/addons/sale/report/sale_report_view.xml
index 3d93d45cfc5..7a5546e012a 100644
--- a/addons/sale/report/sale_report_view.xml
+++ b/addons/sale/report/sale_report_view.xml
@@ -61,7 +61,7 @@
                     <filter icon="terp-go-month"
                          string="    Month-1    "
                          separator="1"
-                         domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                         domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                          help="Sales order created in last month"/>
                     <separator orientation="vertical"/>
                     <filter icon="terp-document-new"
diff --git a/addons/stock/report/report_stock_move_view.xml b/addons/stock/report/report_stock_move_view.xml
index 1d9dc4a5ce4..c969b09e92b 100644
--- a/addons/stock/report/report_stock_move_view.xml
+++ b/addons/stock/report/report_stock_move_view.xml
@@ -74,7 +74,7 @@
                 <filter icon="terp-go-month"
                  string="Month-1"
                  name="month-1"
-                 domain="[('date','&lt;=', (datetime.date (int(time.strftime('%%Y')), datetime.date.today().month, 1) - datetime.timedelta (days = 1)).strftime('%%Y-%%m-%%d')),('date','&gt;',(datetime.date (int(time.strftime('%%Y')), datetime.date.today().month-1, 1)).strftime('%%Y-%%m-%%d'))]"
+                 domain="[('date','&lt;=', (datetime.date.today() - relativedelta(day=31, months=1)).strftime('%%Y-%%m-%%d')),('date','&gt;=',(datetime.date.today() - relativedelta(day=1,months=1)).strftime('%%Y-%%m-%%d'))]"
                  help="Last month"/>
                 <filter icon="terp-go-month" string="Month"
                 name="month"