diff --git a/cor_custom/models/analytic.py b/cor_custom/models/analytic.py
index d67c93c..a142200 100755
--- a/cor_custom/models/analytic.py
+++ b/cor_custom/models/analytic.py
@@ -26,8 +26,8 @@ class AccountAnalyticLine(models.Model):
     def _default_end_datetime(self):
         return fields.Datetime.to_string(datetime.combine(fields.Datetime.now(), datetime.max.time()))
 
-    start_datetime = fields.Datetime("Start Time", required=True, default=_default_start_datetime)
-    end_datetime = fields.Datetime("End Time", required=True, default=_default_end_datetime)
+    start_datetime = fields.Datetime("Start Time", required=True)
+    end_datetime = fields.Datetime("End Time", required=True)
 
 
     @api.onchange('project_id')
@@ -104,17 +104,27 @@ class AccountAnalyticLine(models.Model):
                 if rec.end_time < rec.start_time:
                     raise exceptions.ValidationError(_('End time cannot be earlier than Start time'))
 
-    @api.onchange('start_time', 'end_time', 'start_datetime', 'end_datetime')
+    @api.onchange('start_time', 'end_time')
     def _onchange_start_end_time(self):
         if self.start_time > 0 and self.end_time > 0:
             res = self.end_time - self.start_time
             if res <= 0:
                 raise ValidationError(_("End time cannot be earlier than Start time"))
             self.unit_amount = res
-        # if self.start_datetime and self.end_datetime:
-        #     res1 = self.end_datetime - self.start_datetime
-        #     print('ressssssssss', res1)
-        #     self.unit_amount = res1
+
+    @api.onchange('start_datetime', 'end_datetime')
+    def _onchange_start_end_date_time(self):
+        if self.start_datetime and self.end_datetime:
+            total_hours = (self.end_datetime - self.start_datetime).total_seconds() / 3600
+            self.unit_amount = total_hours
+
+    # @api.onchange('start_time', 'end_time')
+    # def _onchange_start_end_time(self):
+    #     if self.start_time > 0:
+    #         dt = datetime.strptime('26 Sep 2012', '%d %b %Y')
+    #         print('HHHHHHHH', dt)
+    #         newdatetime = dt.replace(hour=11, minute=59)
+    #         print('GGGGGGGGGGGGG', newdatetime)
 
     @api.model
     def export_data(self, fields):
diff --git a/cor_custom/views/analytic_view.xml b/cor_custom/views/analytic_view.xml
index a867918..6164ace 100755
--- a/cor_custom/views/analytic_view.xml
+++ b/cor_custom/views/analytic_view.xml
@@ -73,8 +73,8 @@
                        widget="task_with_hours" context="{'default_project_id': project_id}"
                        domain="[('project_id', '=', project_id)]"/>
                 <field name="name" optional="show" required="0"/>
-                <field name="start_time" widget="float_time" invisible="1"/><!--custom-->
-                <field name="end_time" widget="float_time" invisible="1"/><!--custom-->
+                <field name="start_time" widget="float_time" invisible="0"/><!--custom-->
+                <field name="end_time" widget="float_time" invisible="0"/><!--custom-->
                 <field name="start_datetime" string="Start Time"/><!--custom-->
                 <field name="end_datetime" string="End Time"/><!--custom-->
                 <field name="unit_amount" optional="show" widget="timesheet_uom" sum="Total"
@@ -171,8 +171,8 @@
                         <group>
                             <!--<field name="amount"/>-->
                             <field name="amount" invisible="1"/>
-                            <field name="start_time" widget="float_time" invisible="1"/><!--custom-->
-                            <field name="end_time" widget="float_time" invisible="1"/><!--custom-->
+                            <field name="start_time"  invisible="0"/><!--custom-->
+                            <field name="end_time" widget="float_time" invisible="0"/><!--custom-->
                             <field name="start_datetime" string="Start Time"/><!--custom-->
                             <field name="end_datetime" string="End Time"/><!--custom-->
                             <field name="unit_amount" widget="timesheet_uom" decoration-danger="unit_amount &gt; 24"/>