diff --git a/superset/db_engine_specs/duckdb.py b/superset/db_engine_specs/duckdb.py
index c47282e9b73f9..577098a1ca572 100644
--- a/superset/db_engine_specs/duckdb.py
+++ b/superset/db_engine_specs/duckdb.py
@@ -47,7 +47,7 @@ class DuckDBEngineSpec(BaseEngineSpec):
         "P1D": "DATE_TRUNC('day', {col})",
         "P1W": "DATE_TRUNC('week', {col})",
         "P1M": "DATE_TRUNC('month', {col})",
-        "P0.25Y": "DATE_TRUNC('quarter', {col})",
+        "P3M": "DATE_TRUNC('quarter', {col})",
         "P1Y": "DATE_TRUNC('year', {col})",
     }
 
diff --git a/superset/db_engine_specs/kusto.py b/superset/db_engine_specs/kusto.py
index d8a52768d9d0a..77485310ee4c6 100644
--- a/superset/db_engine_specs/kusto.py
+++ b/superset/db_engine_specs/kusto.py
@@ -49,7 +49,7 @@ class KustoSqlEngineSpec(BaseEngineSpec):  # pylint: disable=abstract-method
         "P1D": "DATEADD(day, DATEDIFF(day, 0, {col}), 0)",
         "P1W": "DATEADD(day, -1, DATEADD(week, DATEDIFF(week, 0, {col}), 0))",
         "P1M": "DATEADD(month, DATEDIFF(month, 0, {col}), 0)",
-        "P0.25Y": "DATEADD(quarter, DATEDIFF(quarter, 0, {col}), 0)",
+        "P3M": "DATEADD(quarter, DATEDIFF(quarter, 0, {col}), 0)",
         "P1Y": "DATEADD(year, DATEDIFF(year, 0, {col}), 0)",
         "1969-12-28T00:00:00Z/P1W": "DATEADD(day, -1,"
         " DATEADD(week, DATEDIFF(week, 0, {col}), 0))",
diff --git a/superset/db_engine_specs/teradata.py b/superset/db_engine_specs/teradata.py
index bd2ee5160530a..887add24e909e 100644
--- a/superset/db_engine_specs/teradata.py
+++ b/superset/db_engine_specs/teradata.py
@@ -36,7 +36,7 @@ class TeradataEngineSpec(BaseEngineSpec):
         "P1D": "TRUNC(CAST({col} as DATE), 'DDD')",
         "P1W": "TRUNC(CAST({col} as DATE), 'WW')",
         "P1M": "TRUNC(CAST({col} as DATE), 'MONTH')",
-        "P0.25Y": "TRUNC(CAST({col} as DATE), 'Q')",
+        "P3M": "TRUNC(CAST({col} as DATE), 'Q')",
         "P1Y": "TRUNC(CAST({col} as DATE), 'YEAR')",
     }