diff --git a/testssl.sh b/testssl.sh
index a0f468f..d66656e 100755
--- a/testssl.sh
+++ b/testssl.sh
@@ -1177,8 +1177,16 @@ server_defaults() {
 		     		pr_litered "expires < $DAYS2WARN2 days!"
 			fi
 		fi
-		enddate=$(date --date="$($OPENSSL x509 -in $HOSTCERT -noout -enddate | cut -d= -f 2)" +"%F %H:%M %z")
-		startdate=$(date --date="$($OPENSSL x509 -in $HOSTCERT -noout -startdate | cut -d= -f 2)" +"%F %H:%M")
+		case $(uname -s) in
+			Linux)
+				enddate=$(date --date="$($OPENSSL x509 -in $HOSTCERT -noout -enddate | cut -d= -f 2)" +"%F %H:%M %z")
+				startdate=$(date --date="$($OPENSSL x509 -in $HOSTCERT -noout -startdate | cut -d= -f 2)" +"%F %H:%M")
+				;;
+			FreeBSD)
+				enddate=$(date -j -f "%b %d %T %Y %Z" "$($OPENSSL x509 -in $HOSTCERT -noout -enddate | cut -d= -f 2)" +"%F %H:%M %z")
+				startdate=$(date -j -f "%b %d %T %Y %Z" "$($OPENSSL x509 -in $HOSTCERT -noout -startdate | cut -d= -f 2)" +"%F %H:%M")
+				;;
+		esac
 		outln " ($startdate --> $enddate)"
 
 		savedir=$(pwd); cd $TEMPDIR