diff --git a/xarray/coding/variables.py b/xarray/coding/variables.py
index 30fe3384477..eee2858e074 100644
--- a/xarray/coding/variables.py
+++ b/xarray/coding/variables.py
@@ -9,7 +9,6 @@
 import numpy as np
 import pandas as pd
 
-from xarray.coding import times
 from xarray.core import dtypes, duck_array_ops, indexing
 from xarray.core.pycompat import is_duck_dask_array
 from xarray.core.variable import Variable
@@ -286,11 +285,11 @@ def decode(self, variable: Variable, name: T_Name = None):
             units = attrs.get("units", None)
             # try to cast to correct dtypes for data and fill_value
             # GH 7817
-            if ((
+            if (
                 isinstance(units, str)
                 and "since" in units
-                and np.issubdtype(data.dtype, np.integer)) or np.issubdtype(data.dtype, np.datetime64)
-            ):
+                and np.issubdtype(data.dtype, np.integer)
+            ) or np.issubdtype(data.dtype, np.datetime64):
                 dtype, decoded_fill_value = data.dtype, np.datetime64("NaT").astype(
                     data.dtype
                 )