Add time.CLOCK_HIGHRES constant, needed on Solaris
diff --git a/Doc/library/time.rst b/Doc/library/time.rst
index 581b68a..f87fa64 100644
--- a/Doc/library/time.rst
+++ b/Doc/library/time.rst
@@ -159,6 +159,15 @@
    .. versionadded:: 3.3
 
 
+.. data:: CLOCK_HIGHRES
+
+   The Solaris OS has a CLOCK_HIGHRES timer that attempts to use an optimal
+   hardware source, and may give close to nanosecond resolution. CLOCK_HIGHRES
+   is the nonadjustable, high-resolution clock.
+
+   .. versionadded:: 3.3
+
+
 .. data:: CLOCK_MONOTONIC
 
    Clock that cannot be set and represents monotonic time since some