diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
index 032f5a47433..e695ae34537 100644
--- a/src/backend/commands/explain.c
+++ b/src/backend/commands/explain.c
@@ -23,6 +23,7 @@
 #include "optimizer/clauses.h"
 #include "parser/parsetree.h"
 #include "rewrite/rewriteHandler.h"
+#include "storage/bufmgr.h"
 #include "tcop/tcopprot.h"
 #include "utils/builtins.h"
 #include "utils/json.h"
@@ -673,8 +674,11 @@ report_triggers(ResultRelInfo *rInfo, bool show_relname, ExplainState *es)
 				appendStringInfo(es->str, " for constraint %s", conname);
 			if (show_relname)
 				appendStringInfo(es->str, " on %s", relname);
-			appendStringInfo(es->str, ": time=%.3f calls=%.0f\n",
-							 1000.0 * instr->total, instr->ntuples);
+			if (es->timing)
+				appendStringInfo(es->str, ": time=%.3f calls=%.0f\n",
+								 1000.0 * instr->total, instr->ntuples);
+			else
+				appendStringInfo(es->str, ": calls=%.0f\n", instr->ntuples);
 		}
 		else
 		{
@@ -682,7 +686,8 @@ report_triggers(ResultRelInfo *rInfo, bool show_relname, ExplainState *es)
 			if (conname)
 				ExplainPropertyText("Constraint Name", conname, es);
 			ExplainPropertyText("Relation", relname, es);
-			ExplainPropertyFloat("Time", 1000.0 * instr->total, 3, es);
+			if (es->timing)
+				ExplainPropertyFloat("Time", 1000.0 * instr->total, 3, es);
 			ExplainPropertyFloat("Calls", instr->ntuples, 0, es);
 		}
 
@@ -1543,8 +1548,11 @@ ExplainNode(PlanState *planstate, List *ancestors,
 			ExplainPropertyLong("Local Written Blocks", usage->local_blks_written, es);
 			ExplainPropertyLong("Temp Read Blocks", usage->temp_blks_read, es);
 			ExplainPropertyLong("Temp Written Blocks", usage->temp_blks_written, es);
-			ExplainPropertyFloat("I/O Read Time", INSTR_TIME_GET_MILLISEC(usage->blk_read_time), 3, es);
-			ExplainPropertyFloat("I/O Write Time", INSTR_TIME_GET_MILLISEC(usage->blk_write_time), 3, es);
+			if (track_io_timing)
+			{
+				ExplainPropertyFloat("I/O Read Time", INSTR_TIME_GET_MILLISEC(usage->blk_read_time), 3, es);
+				ExplainPropertyFloat("I/O Write Time", INSTR_TIME_GET_MILLISEC(usage->blk_write_time), 3, es);
+			}
 		}
 	}