lib/PublicInbox/SearchMsg.pm | 2 +-

diff --git a/lib/PublicInbox/SearchMsg.pm b/lib/PublicInbox/SearchMsg.pm
index 0fb2a07e43f5818f30acfe4ba4cfc8fdec60ce65..caebe3729d4cf3a038c75c05736d6fd3045d1dca 100644
--- a/lib/PublicInbox/SearchMsg.pm
+++ b/lib/PublicInbox/SearchMsg.pm
@@ -80,7 +80,7 @@ 	my $date = __hdr($self, 'date');
 	return $date if defined $date;
 	my $ts = $self->{ts};
 	return unless defined $ts;
-	$self->{date} = strftime('%a, %d %b %Y %T %z', gmtime($ts));
+	$self->{date} = strftime('%a, %d %b %Y %T +0000', gmtime($ts));
 }
 
 sub from ($) {