diff --git a/addons/web/static/src/views/fields/datetime/datetime_field.js b/addons/web/static/src/views/fields/datetime/datetime_field.js
index 42a2b470614..612f42102a3 100644
--- a/addons/web/static/src/views/fields/datetime/datetime_field.js
+++ b/addons/web/static/src/views/fields/datetime/datetime_field.js
@@ -221,7 +221,10 @@ export class DateTimeField extends Component {
      */
     shouldShowSeparator() {
         return (
-            this.props.alwaysRange ||
+            (this.props.alwaysRange &&
+                (this.props.readonly
+                    ? !this.isEmpty(this.startDateField) || !this.isEmpty(this.endDateField)
+                    : true)) ||
             (this.state.range &&
                 (this.props.required ||
                     (!this.isEmpty(this.startDateField) && !this.isEmpty(this.endDateField))))
diff --git a/addons/web/static/tests/views/fields/daterange_field_tests.js b/addons/web/static/tests/views/fields/daterange_field_tests.js
index 98964c46b12..7b5cd4f1b59 100644
--- a/addons/web/static/tests/views/fields/daterange_field_tests.js
+++ b/addons/web/static/tests/views/fields/daterange_field_tests.js
@@ -1219,4 +1219,22 @@ QUnit.module("Fields", (hooks) => {
             assert.containsNone(target, ".o_add_date");
         }
     );
+
+    QUnit.test(
+        "there is no arrow between the dates with option always_range if nothing is set and it is readonly",
+        async (assert) => {
+            await makeView({
+                type: "form",
+                resModel: "partner",
+                serverData,
+                arch: /* xml */ `
+                <form>
+                    <field name="datetime" widget="daterange" options="{'end_date_field': 'datetime_end', 'always_range': 'true'}" />
+                    <field name="datetime" widget="daterange" options="{'end_date_field': 'datetime_end', 'always_range': 'true'}" readonly="true" />
+                </form>`,
+            });
+
+            assert.containsOnce(target, ".fa-long-arrow-right");
+        }
+    );
 });