diff --git a/contrib/auto_explain/auto_explain.c contrib/auto_explain/auto_explain.c
index a47e7f0c295..b00e1a0ec5d 100644
--- a/contrib/auto_explain/auto_explain.c
+++ contrib/auto_explain/auto_explain.c
@@ -18,6 +18,7 @@
 #include "commands/explain.h"
 #include "executor/instrument.h"
 #include "jit/jit.h"
+#include "optimizer/planner.h"
 #include "utils/guc.h"
 
 PG_MODULE_MAGIC;
@@ -335,6 +336,7 @@ explain_ExecutorEnd(QueryDesc *queryDesc)
 		if (msec >= auto_explain_log_min_duration)
 		{
 			ExplainState *es = NewExplainState();
+			instr_time planduration = queryDesc->plannedstmt->planDuration;
 
 			es->analyze = (queryDesc->instrument_options && auto_explain_log_analyze);
 			es->verbose = auto_explain_log_verbose;
@@ -370,8 +372,9 @@ explain_ExecutorEnd(QueryDesc *queryDesc)
 			 * often result in duplication.
 			 */
 			ereport(LOG,
-					(errmsg("duration: %.3f ms  plan:\n%s",
-							msec, es->str->data),
+					(errmsg("duration: %.3f ms planning: %.3f ms plan:\n%s",
+							msec, 1000 * INSTR_TIME_GET_DOUBLE(planduration),
+							es->str->data),
 					 errhidestmt(true)));
 
 			pfree(es->str->data);
diff --git a/src/backend/commands/explain.c src/backend/commands/explain.c
index 799a22e9d55..670c2d6ceb7 100644
--- a/src/backend/commands/explain.c
+++ src/backend/commands/explain.c
@@ -356,20 +356,13 @@ ExplainOneQuery(Query *query, int cursorOptions,
 	else
 	{
 		PlannedStmt *plan;
-		instr_time	planstart,
-					planduration;
-
-		INSTR_TIME_SET_CURRENT(planstart);
 
 		/* plan the query */
 		plan = pg_plan_query(query, cursorOptions, params);
 
-		INSTR_TIME_SET_CURRENT(planduration);
-		INSTR_TIME_SUBTRACT(planduration, planstart);
-
 		/* run it (if needed) and produce output */
 		ExplainOnePlan(plan, into, es, queryString, params, queryEnv,
-					   &planduration);
+					   &plan->planDuration);
 	}
 }
 
diff --git a/src/backend/optimizer/plan/planner.c src/backend/optimizer/plan/planner.c
index 6a3f4667e89..caac90bfac0 100644
--- a/src/backend/optimizer/plan/planner.c
+++ src/backend/optimizer/plan/planner.c
@@ -256,11 +256,22 @@ PlannedStmt *
 planner(Query *parse, int cursorOptions, ParamListInfo boundParams)
 {
 	PlannedStmt *result;
+	instr_time	planstart,
+				planduration;
+
+	INSTR_TIME_SET_CURRENT(planstart);
 
 	if (planner_hook)
 		result = (*planner_hook) (parse, cursorOptions, boundParams);
 	else
 		result = standard_planner(parse, cursorOptions, boundParams);
+
+	INSTR_TIME_SET_CURRENT(planduration);
+	INSTR_TIME_SUBTRACT(planduration, planstart);
+
+	/* Record time spent on hooks and standard_planner() */
+	result->planDuration = planduration;
+
 	return result;
 }
 
diff --git a/src/include/nodes/plannodes.h src/include/nodes/plannodes.h
index fae16500fe2..ca2bedc89d2 100644
--- a/src/include/nodes/plannodes.h
+++ src/include/nodes/plannodes.h
@@ -20,6 +20,7 @@
 #include "nodes/bitmapset.h"
 #include "nodes/lockoptions.h"
 #include "nodes/primnodes.h"
+#include "portability/instr_time.h"
 
 
 /* ----------------------------------------------------------------
@@ -96,6 +97,8 @@ typedef struct PlannedStmt
 
 	Node	   *utilityStmt;	/* non-null if this is utility stmt */
 
+	instr_time	planDuration;	/* time spent on planning */
+
 	/* statement location in source string (copied from Query) */
 	int			stmt_location;	/* start location, or -1 if unknown */
 	int			stmt_len;		/* length in bytes; 0 means "rest of string" */