diff --git a/stdlib/2and3/time.pyi b/stdlib/2and3/time.pyi
index 0c2370ad6..9c50beaf7 100644
--- a/stdlib/2and3/time.pyi
+++ b/stdlib/2and3/time.pyi
@@ -103,8 +103,9 @@ if sys.version_info >= (3, 3):
         def clock_settime(clk_id: int, time: float) -> None: ...  # Unix only
 
 if sys.version_info >= (3, 7):
-    def clock_gettime_ns(clock_id: int) -> int: ...
-    def clock_settime_ns(clock_id: int, time: int) -> int: ...
+    if sys.platform != "win32":
+        def clock_gettime_ns(clock_id: int) -> int: ...
+        def clock_settime_ns(clock_id: int, time: int) -> int: ...
     def monotonic_ns() -> int: ...
     def perf_counter_ns() -> int: ...
     def process_time_ns() -> int: ...