diff --git a/superset-frontend/src/explore/components/controls/DateFilterControl/DateFilterLabel.tsx b/superset-frontend/src/explore/components/controls/DateFilterControl/DateFilterLabel.tsx
index 485952af3..98a5645fa 100644
--- a/superset-frontend/src/explore/components/controls/DateFilterControl/DateFilterLabel.tsx
+++ b/superset-frontend/src/explore/components/controls/DateFilterControl/DateFilterLabel.tsx
@@ -39,6 +39,8 @@ import Icon from 'src/components/Icon';
 import { Select } from 'src/components/Select';
 import { Tooltip } from 'src/common/components/Tooltip';
 import { DEFAULT_TIME_RANGE } from 'src/explore/constants';
+import { useDebouncedEffect } from 'src/explore/exploreUtils';
+import { SLOW_DEBOUNCE } from 'src/constants';
 
 import { SelectOptionType, FrameType } from './types';
 import {
@@ -220,17 +222,21 @@ export default function DateFilterLabel(props: DateFilterControlProps) {
     });
   }, [value]);
 
-  useEffect(() => {
-    fetchTimeRange(timeRangeValue, endpoints).then(({ value, error }) => {
-      if (error) {
-        setEvalResponse(error || '');
-        setValidTimeRange(false);
-      } else {
-        setEvalResponse(value || '');
-        setValidTimeRange(true);
-      }
-    });
-  }, [timeRangeValue]);
+  useDebouncedEffect(
+    () => {
+      fetchTimeRange(timeRangeValue, endpoints).then(({ value, error }) => {
+        if (error) {
+          setEvalResponse(error || '');
+          setValidTimeRange(false);
+        } else {
+          setEvalResponse(value || '');
+          setValidTimeRange(true);
+        }
+      });
+    },
+    SLOW_DEBOUNCE,
+    [timeRangeValue],
+  );
 
   function onSave() {
     onChange(timeRangeValue);
diff --git a/superset/utils/date_parser.py b/superset/utils/date_parser.py
index 15e021a64..30fce841b 100644
--- a/superset/utils/date_parser.py
+++ b/superset/utils/date_parser.py
@@ -85,7 +85,7 @@ def parse_human_datetime(human_readable: str) -> datetime:
         parsed_dttm, parsed_flags = cal.parseDT(human_readable)
         # 0 == not parsed at all
         if parsed_flags == 0:
-            logger.exception(ex)
+            logger.debug(ex)
             raise TimeRangeParseFailError(human_readable)
         # when time is not extracted, we 'reset to midnight'
         if parsed_flags & 2 == 0:
diff --git a/superset/views/api.py b/superset/views/api.py
index 7df1c5e71..80cb5b666 100644
--- a/superset/views/api.py
+++ b/superset/views/api.py
@@ -24,6 +24,10 @@ from flask_appbuilder.api import rison
 from flask_appbuilder.security.decorators import has_access_api
 
 from superset import db, event_logger
+from superset.charts.commands.exceptions import (
+    TimeRangeParseFailError,
+    TimeRangeUnclearError,
+)
 from superset.common.query_context import QueryContext
 from superset.legacy import update_time_range
 from superset.models.slice import Slice
@@ -93,6 +97,6 @@ class Api(BaseSupersetView):
                 "timeRange": time_range,
             }
             return self.json_response({"result": result})
-        except ValueError as error:
+        except (ValueError, TimeRangeParseFailError, TimeRangeUnclearError) as error:
             error_msg = {"message": f"Unexpected time range: {error}"}
             return self.json_response(error_msg, 400)