diff --git a/superset/examples/birth_names.py b/superset/examples/birth_names.py
index 2332370690de6..3f5f3beb06a77 100644
--- a/superset/examples/birth_names.py
+++ b/superset/examples/birth_names.py
@@ -143,6 +143,7 @@ def create_slices(tbl: BaseDatasource) -> Tuple[List[Slice], List[Slice]]:
         "compare_suffix": "o10Y",
         "limit": "25",
         "time_range": "No filter",
+        "time_range_endpoints": ["inclusive", "exclusive"],
         "granularity_sqla": "ds",
         "groupby": [],
         "row_limit": config["ROW_LIMIT"],
diff --git a/superset/examples/deck.py b/superset/examples/deck.py
index 8fee2c5039ab3..c2cecde96e236 100644
--- a/superset/examples/deck.py
+++ b/superset/examples/deck.py
@@ -185,6 +185,7 @@ def load_deck_dash() -> None:
         "max_radius": 250,
         "row_limit": 5000,
         "time_range": " : ",
+        "time_range_endpoints": ["inclusive", "exclusive"],
         "size": "count",
         "time_grain_sqla": None,
         "viewport": {
diff --git a/superset/examples/world_bank.py b/superset/examples/world_bank.py
index 3f7509bb824b2..0596142e85cb2 100644
--- a/superset/examples/world_bank.py
+++ b/superset/examples/world_bank.py
@@ -129,6 +129,7 @@ def load_world_bank_health_n_pop(  # pylint: disable=too-many-locals, too-many-s
         "since": "2014-01-01",
         "until": "2014-01-02",
         "time_range": "2014-01-01 : 2014-01-02",
+        "time_range_endpoints": ["inclusive", "exclusive"],
         "markup_type": "markdown",
         "country_fieldtype": "cca3",
         "entity": "country_code",
@@ -273,7 +274,7 @@ def load_world_bank_health_n_pop(  # pylint: disable=too-many-locals, too-many-s
                 viz_type="sunburst",
                 groupby=["region", "country_name"],
                 since="2011-01-01",
-                until="2011-01-01",
+                until="2011-01-02",
                 metric=metric,
                 secondary_metric=secondary_metric,
             ),
@@ -330,7 +331,7 @@ def load_world_bank_health_n_pop(  # pylint: disable=too-many-locals, too-many-s
             params=get_slice_json(
                 defaults,
                 since="2011-01-01",
-                until="2011-01-01",
+                until="2012-01-01",
                 viz_type="para",
                 limit=100,
                 metrics=["sum__SP_POP_TOTL", "sum__SP_RUR_TOTL_ZS", "sum__SH_DYN_AIDS"],