--- monitoring-plugins-2.3~alpha.20200520T233014.cadac85e/plugins/check_ntp_time.c	2020/10/12 16:05:30	1.1
+++ monitoring-plugins-2.3~alpha.20200520T233014.cadac85e/plugins/check_ntp_time.c	2020/10/12 16:07:13
@@ -533,7 +533,7 @@
 
 char *perfd_offset (double offset)
 {
-	return fperfdata ("offset", offset, "s",
+	return fperfdata ("offset", fabs(offset), "s",
 		TRUE, offset_thresholds->warning->end,
 		TRUE, offset_thresholds->critical->end,
 		FALSE, 0, FALSE, 0);