diff --git a/superset/assets/src/dashboard/actions/sliceEntities.js b/superset/assets/src/dashboard/actions/sliceEntities.js
index e98d28bcc4..efee23eec3 100644
--- a/superset/assets/src/dashboard/actions/sliceEntities.js
+++ b/superset/assets/src/dashboard/actions/sliceEntities.js
@@ -77,6 +77,7 @@ export function fetchAllSlices(userId) {
                 description_markdown: slice.description_markeddown,
                 viz_type: slice.viz_type,
                 modified: slice.modified,
+                changed_on_humanized: slice.changed_on_humanized,
               };
             }
           });
diff --git a/superset/assets/src/dashboard/components/SliceAdder.jsx b/superset/assets/src/dashboard/components/SliceAdder.jsx
index 9359759ae4..dd6ad56756 100644
--- a/superset/assets/src/dashboard/components/SliceAdder.jsx
+++ b/superset/assets/src/dashboard/components/SliceAdder.jsx
@@ -170,7 +170,6 @@ class SliceAdder extends React.Component {
       chartId: cellData.slice_id,
       sliceName: cellData.slice_name,
     };
-
     return (
       <DragDroppable
         key={key}
@@ -202,7 +201,7 @@ class SliceAdder extends React.Component {
               innerRef={dragSourceRef}
               style={style}
               sliceName={cellData.slice_name}
-              lastModified={cellData.modified}
+              lastModified={cellData.changed_on_humanized}
               visType={cellData.viz_type}
               datasourceLink={cellData.datasource_link}
               isSelected={isSelected}
diff --git a/superset/models/core.py b/superset/models/core.py
index b848604a46..f9a2a70a12 100644
--- a/superset/models/core.py
+++ b/superset/models/core.py
@@ -243,6 +243,7 @@ class Slice(Model, AuditMixinNullable, ImportMixin):
             'slice_name': self.slice_name,
             'slice_url': self.slice_url,
             'modified': self.modified(),
+            'changed_on_humanized': self.changed_on_humanized,
             'changed_on': self.changed_on.isoformat(),
         }
 
diff --git a/superset/models/helpers.py b/superset/models/helpers.py
index a1e9b3c61a..78b438d9f8 100644
--- a/superset/models/helpers.py
+++ b/superset/models/helpers.py
@@ -288,10 +288,13 @@ class AuditMixinNullable(AuditMixin):
     def changed_on_(self):
         return Markup(f'<span class="no-wrap">{self.changed_on}</span>')
 
+    @property
+    def changed_on_humanized(self):
+        return humanize.naturaltime(datetime.now() - self.changed_on)
+
     @renders('changed_on')
     def modified(self):
-        time_str = humanize.naturaltime(datetime.now() - self.changed_on)
-        return Markup(f'<span class="no-wrap">{time_str}</span>')
+        return Markup(f'<span class="no-wrap">{self.changed_on_humanized}</span>')
 
 
 class QueryResult(object):
diff --git a/superset/views/core.py b/superset/views/core.py
index c599bfe206..04fff7b109 100755
--- a/superset/views/core.py
+++ b/superset/views/core.py
@@ -576,7 +576,8 @@ class SliceAsync(SliceModelView):  # noqa
     route_base = '/sliceasync'
     list_columns = [
         'id', 'slice_link', 'viz_type', 'slice_name',
-        'creator', 'modified', 'icons']
+        'creator', 'modified', 'icons', 'changed_on_humanized',
+    ]
     label_columns = {
         'icons': ' ',
         'slice_link': _('Chart'),
@@ -592,7 +593,8 @@ class SliceAddView(SliceModelView):  # noqa
         'id', 'slice_name', 'slice_url', 'edit_url', 'viz_type', 'params',
         'description', 'description_markeddown', 'datasource_id', 'datasource_type',
         'datasource_name_text', 'datasource_link',
-        'owners', 'modified', 'changed_on']
+        'owners', 'modified', 'changed_on', 'changed_on_humanized',
+    ]
 
 
 appbuilder.add_view_no_menu(SliceAddView)