--- loncom/interface/lonsearchcat.pm	2017/08/11 00:32:07	1.353
+++ loncom/interface/lonsearchcat.pm	2020/08/26 00:42:39	1.354
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Search Catalog
 #
-# $Id: lonsearchcat.pm,v 1.353 2017/08/11 00:32:07 raeburn Exp $
+# $Id: lonsearchcat.pm,v 1.354 2020/08/26 00:42:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1883,6 +1883,8 @@ sub build_date_queries {
             my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
             # Correct for year being relative to 1900
             $cayear+=1900; $cbyear+=1900;
+            # Correct month; localtime gives month 0..11 but MySQL expects 1..12
+            $camon++; $cbmon++;
             my $cquery=
                 '(creationdate BETWEEN '.
                 "'".$cayear.'-'.$camon.'-'.$caday."'".
@@ -1901,6 +1903,8 @@ sub build_date_queries {
             my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
             # Correct for year being relative to 1900
             $mayear+=1900; $mbyear+=1900;
+            # Correct month; localtime gives month 0..11 but MySQL expects 1..12
+            $mamon++; $mbmon++;
             my $mquery=
                 '(lastrevisiondate BETWEEN '.
                 "'".$mayear.'-'.$mamon.'-'.$maday."'".