diff --git a/xarray/core/options.py b/xarray/core/options.py
index 23ec5bb3f73..2d69e4b6584 100644
--- a/xarray/core/options.py
+++ b/xarray/core/options.py
@@ -258,8 +258,6 @@ class set_options:
     warn_for_unclosed_files : bool, default: False
         Whether or not to issue a warning when unclosed files are
         deallocated. This is mostly useful for debugging.
-    time_resolution : {"s", "ms", "us", "ns"}, default: "s"
-        Time resolution used for CF encoding/decoding.
 
     Examples
     --------