diff --git a/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-preset-chart-big-number/src/BigNumber/controlPanel.tsx b/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-preset-chart-big-number/src/BigNumber/controlPanel.tsx
index 62ee65ab622..f3e4ee98d5b 100644
--- a/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-preset-chart-big-number/src/BigNumber/controlPanel.tsx
+++ b/superset-frontend/temporary_superset_ui/superset-ui/plugins/legacy-preset-chart-big-number/src/BigNumber/controlPanel.tsx
@@ -62,18 +62,6 @@ const config: ControlPanelConfig = {
           },
         ],
         ['y_axis_format'],
-        [
-          {
-            name: 'show_timestamp',
-            config: {
-              type: 'CheckboxControl',
-              label: t('Show Timestamp'),
-              renderTrigger: true,
-              default: false,
-              description: t('Whether to display the timestamp'),
-            },
-          },
-        ],
         [
           {
             name: 'time_format',
@@ -83,12 +71,19 @@ const config: ControlPanelConfig = {
               label: t('Timestamp format'),
               renderTrigger: true,
               choices: D3_TIME_FORMAT_OPTIONS,
-              default: '%d-%m-%Y %H:%M:%S',
               description: D3_FORMAT_DOCS,
-              visibility(props) {
-                const { show_timestamp } = props.form_data;
-                return !!show_timestamp;
-              },
+            },
+          },
+        ],
+        [
+          {
+            name: 'show_timestamp',
+            config: {
+              type: 'CheckboxControl',
+              label: t('Show Timestamp'),
+              renderTrigger: true,
+              default: false,
+              description: t('Whether to display the timestamp'),
             },
           },
         ],