added datatype

Author: linglp

tests/integration/synapseclient/test_tables.py

@@ -404,7 +404,7 @@ def test_tables_pandas(syn, project):
     # SYNPY-717
     # This is a check for windows
     if os.name == "nt":
-        df["datetime64"] = pd.to_datetime(df["datetime64"], utc=True)
+        df["datetime64"] = pd.to_datetime(df["datetime64"], utc=True, dtype='datetime64[ns, UTC]', freq=None)
     else:
         df["datetime64"] = pd.to_datetime(df["datetime64"], unit="ms", utc=True)