diff --git a/superset/assets/src/explore/components/controls/DateFilterControl.jsx b/superset/assets/src/explore/components/controls/DateFilterControl.jsx
index 4d210c433c2f6..9e07b99037cac 100644
--- a/superset/assets/src/explore/components/controls/DateFilterControl.jsx
+++ b/superset/assets/src/explore/components/controls/DateFilterControl.jsx
@@ -66,15 +66,8 @@ const COMMON_TIME_FRAMES = [
 const TIME_GRAIN_OPTIONS = ['seconds', 'minutes', 'hours', 'days', 'weeks', 'months', 'years'];
 
 const MOMENT_FORMAT = 'YYYY-MM-DD[T]HH:mm:ss';
-const DEFAULT_SINCE = moment()
-  .utc()
-  .startOf('day')
-  .subtract(7, 'days')
-  .format(MOMENT_FORMAT);
-const DEFAULT_UNTIL = moment()
-  .utc()
-  .startOf('day')
-  .format(MOMENT_FORMAT);
+const DEFAULT_SINCE = moment().startOf('day').subtract(7, 'days').format(MOMENT_FORMAT);
+const DEFAULT_UNTIL = moment().startOf('day').format(MOMENT_FORMAT);
 const SEPARATOR = ' : ';
 const FREEFORM_TOOLTIP = t(
   'Superset supports smart date parsing. Strings like `last sunday` or ' +
@@ -116,12 +109,8 @@ function getStateFromCommonTimeFrame(value) {
     tab: TABS.DEFAULTS,
     type: TYPES.DEFAULTS,
     common: value,
-    since: moment()
-      .utc()
-      .startOf('day')
-      .subtract(1, units)
-      .format(MOMENT_FORMAT),
-    until: moment().utc().startOf('day').format(MOMENT_FORMAT),
+    since: moment().startOf('day').subtract(1, units).format(MOMENT_FORMAT),
+    until: moment().startOf('day').format(MOMENT_FORMAT),
   };
 }
 
@@ -130,15 +119,13 @@ function getStateFromCustomRange(value) {
   let since;
   let until;
   if (rel === RELATIVE_TIME_OPTIONS.LAST) {
-    until = moment().utc().startOf('day').format(MOMENT_FORMAT);
+    until = moment().startOf('day').format(MOMENT_FORMAT);
     since = moment()
-      .utc()
       .startOf('day')
       .subtract(num, grain)
       .format(MOMENT_FORMAT);
   } else {
     until = moment()
-      .utc()
       .startOf('day')
       .add(num, grain)
       .format(MOMENT_FORMAT);
diff --git a/superset/assets/src/explore/controls.jsx b/superset/assets/src/explore/controls.jsx
index 40e1233c78024..19773bb411c6a 100644
--- a/superset/assets/src/explore/controls.jsx
+++ b/superset/assets/src/explore/controls.jsx
@@ -1026,14 +1026,6 @@ export const controls = {
     freeForm: true,
     label: t('Time range'),
     default: t('No filter'),
-    description: t(
-      'The time range for the visualization. All relative times, e.g. "Last month", ' +
-      '"Last 7 days", "now", etc. are evaluated on the server using the server\'s ' +
-      'local time (sans timezone). All tooltips and placeholder times are expressed ' +
-      'in UTC (sans timezone). The timestamps are then evaluated by the database ' +
-      'using the engine\'s local timezone. Note one can explicitly set the timezone ' +
-      'per the ISO 8601 format if specifying either the start and/or end time.',
-    ),
   },
 
   max_bubble_size: {