[UPD]Display readonly date session

views/event_session_views.xml

@@ -23,6 +23,31 @@
                     />
                 </h2>
             </div>
+            <div class="o_row" position="replace">
+                <div class="o_row">
+                    <field
+                        name="date_begin"
+                        widget="daterange"
+                        nolabel="1"
+                        class="oe_inline"
+                        options="{'related_end_date': 'date_end'}"
+                        attrs="{'readonly': [('is_slot_management', '=', True)]}"
+                    />
+                    <i
+                        class="fa fa-long-arrow-right mx-2"
+                        aria-label="Arrow icon"
+                        title="Arrow"
+                    />
+                    <field
+                        name="date_end"
+                        widget="daterange"
+                        nolabel="1"
+                        class="oe_inline"
+                        options="{'related_start_date': 'date_begin'}"
+                        attrs="{'readonly': [('is_slot_management', '=', True)]}"
+                    />
+                </div>
+            </div>
             <field name="date_tz" position="before">
                 <field name="is_slot_management" />
                 <field