diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index b7c51dded6a..0440dfcaf51 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -162,7 +162,6 @@ class SaleOrder(models.Model):
     require_payment = fields.Boolean('Online Payment', default=_get_default_require_payment, readonly=True,
         states={'draft': [('readonly', False)], 'sent': [('readonly', False)]},
         help='Request an online payment to the customer in order to confirm orders automatically.')
-    remaining_validity_days = fields.Integer(compute='_compute_remaining_validity_days', string="Remaining Days Before Expiration")
     create_date = fields.Datetime(string='Creation Date', readonly=True, index=True, help="Date on which sales order is created.")
 
     user_id = fields.Many2one(
@@ -302,13 +301,6 @@ class SaleOrder(models.Model):
             else:
                 order.expected_date = False
 
-    def _compute_remaining_validity_days(self):
-        for record in self:
-            if record.validity_date:
-                record.remaining_validity_days = (record.validity_date - fields.Date.today()).days + 1
-            else:
-                record.remaining_validity_days = 0
-
     @api.depends('transaction_ids')
     def _compute_authorized_transaction_ids(self):
         for trans in self:
diff --git a/addons/sale/views/sale_portal_templates.xml b/addons/sale/views/sale_portal_templates.xml
index 2e95e9ca4a0..c8bbb314ebc 100644
--- a/addons/sale/views/sale_portal_templates.xml
+++ b/addons/sale/views/sale_portal_templates.xml
@@ -153,12 +153,10 @@
                             </li>
 
                             <t t-if="not sale_order.is_expired and sale_order.state in ['draft', 'sent']">
-                                <li t-if="sale_order.remaining_validity_days &gt; 0" class="list-group-item">
-                                    <small><b class="text-muted">This offer expires in</b></small>
-                                    <div class="day_counter">
-                                        <i class="fa fa-clock-o" aria-label="Dates" title="Dates"></i>
-                                        <t t-esc="sale_order.remaining_validity_days"/>
-                                        <t t-if="sale_order.remaining_validity_days &gt; 1">days</t><t t-else="">day</t>
+                                <li t-if="sale_order.validity_date" class="list-group-item">
+                                    <small><b class="text-muted">This offer expires on</b></small>
+                                    <div>
+                                        <t t-esc="sale_order.validity_date.strftime('%d %B %Y')"/>
                                     </div>
                                 </li>
                                 <li t-if="sale_order.amount_undiscounted - sale_order.amount_untaxed &gt; 0.01" class="list-group-item flex-grow-1">