diff --git a/docs/changes.txt b/docs/changes.txt
index 68cf93d967..fc1a6a4837 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -459,7 +459,8 @@ All:
 - Fix crash in wxArray::insert() overload taking iterator range (wsu).
 - Added wxEventFilter class and wxEvtHandler::{Add,Remove}Filter().
 - Added convenient wxCmdLineParser::AddLong{Option,Switch}() wrappers.
-- Added wxStopWatch::TimeInMicro() and wxGetUTCTimeUSec().
+- Added wxStopWatch::TimeInMicro() and wxGetUTCTimeUSec() and improved
+  wxStopWatch precision.
 - Made wxGetLocalTimeMillis() really return local time, added
   wxGetUTCTimeMillis() returning what this function used to return.
 
diff --git a/src/common/stopwatch.cpp b/src/common/stopwatch.cpp
index b0e6ddde40..f077378b3a 100644
--- a/src/common/stopwatch.cpp
+++ b/src/common/stopwatch.cpp
@@ -112,8 +112,15 @@ wxLongLong wxStopWatch::GetClockFreq() const
         return gs_perfCounter.freq.QuadPart;
 #endif // __WXMSW__
 
+#ifdef HAVE_GETTIMEOFDAY
+    // With gettimeofday() we can have nominally microsecond precision and
+    // while this is not the case in practice, it's still better than
+    // millisecond.
+    return MICROSECONDS_PER_SECOND;
+#else // !HAVE_GETTIMEOFDAY
     // Currently milliseconds are used everywhere else.
     return MILLISECONDS_PER_SECOND;
+#endif // HAVE_GETTIMEOFDAY/!HAVE_GETTIMEOFDAY
 }
 
 void wxStopWatch::Start(long t0)
@@ -134,7 +141,11 @@ wxLongLong wxStopWatch::GetCurrentClockValue() const
     }
 #endif // __WXMSW__
 
+#ifdef HAVE_GETTIMEOFDAY
+    return wxGetUTCTimeUSec();
+#else // !HAVE_GETTIMEOFDAY
     return wxGetUTCTimeMillis();
+#endif // HAVE_GETTIMEOFDAY/!HAVE_GETTIMEOFDAY
 }
 
 wxLongLong wxStopWatch::TimeInMicro() const