diff --git a/fhem/FHEM/99_SUNRISE_EL.pm b/fhem/FHEM/99_SUNRISE_EL.pm
index 2ff24cdbe..ae6c0320d 100755
--- a/fhem/FHEM/99_SUNRISE_EL.pm
+++ b/fhem/FHEM/99_SUNRISE_EL.pm
@@ -71,7 +71,7 @@ sr($$$$)
   $sst += ($seconds/3600);
 
   my $diff = 0;
-  if($nh >= $sst) {
+  if(int(($nh-$sst)*3600) >= 0) {
     $nt += 86400; # Tommorow
     $diff = 24;
     @lt = localtime($nt);