diff --git a/src/sharedspice.c b/src/sharedspice.c
index db278981d..101c9924e 100644
--- a/src/sharedspice.c
+++ b/src/sharedspice.c
@@ -1971,8 +1971,7 @@ void SetAnalyse(
 
     /* get current time */
     perf_timer_get_time(&timenow);
-    diffsec = timenow.seconds;
-    diffmillisec = timenow.milliseconds;
+    timediff(&timenow, &timebefore, &diffsec, &diffmillisec);
 
     s = TMALLOC(char, 128);
 
diff --git a/src/winmain.c b/src/winmain.c
index b9388c9b6..0d4d44e76 100644
--- a/src/winmain.c
+++ b/src/winmain.c
@@ -233,8 +233,7 @@ SetAnalyse(char *Analyse,   /* in: analysis type */
 
     /* get actual time */
     perf_timer_get_time(&timenow);
-    diffsec = timenow.seconds;
-    diffmillisec = timenow.milliseconds;
+    timediff(&timenow, &timebefore, &diffsec, &diffmillisec);
 
     OldPercent = DecaPercent;
     /* output only into hwAnalyse window and if time elapsed is larger than