diff --git a/src/backend/commands/explain.c b/src/backend/commands/explain.c
new file mode 100644
index 9969a25..42425fa
*** a/src/backend/commands/explain.c
--- b/src/backend/commands/explain.c
*************** ExplainOneQuery(Query *query, IntoClause
*** 318,330 ****
  		(*ExplainOneQuery_hook) (query, into, es, queryString, params);
  	else
  	{
! 		PlannedStmt *plan;
  
  		/* plan the query */
  		plan = pg_plan_query(query, 0, params);
  
  		/* run it (if needed) and produce output */
! 		ExplainOnePlan(plan, into, es, queryString, params);
  	}
  }
  
--- 318,336 ----
  		(*ExplainOneQuery_hook) (query, into, es, queryString, params);
  	else
  	{
! 		PlannedStmt	*plan;
! 		instr_time	planstart, planduration;
! 
! 		INSTR_TIME_SET_CURRENT(planstart);
  
  		/* plan the query */
  		plan = pg_plan_query(query, 0, params);
  
+ 		INSTR_TIME_SET_CURRENT(planduration);
+ 		INSTR_TIME_SUBTRACT(planduration, planstart);
+ 
  		/* run it (if needed) and produce output */
! 		ExplainOnePlan(plan, into, es, queryString, params, planduration);
  	}
  }
  
*************** ExplainOneUtility(Node *utilityStmt, Int
*** 401,412 ****
   */
  void
  ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into, ExplainState *es,
! 			   const char *queryString, ParamListInfo params)
  {
  	DestReceiver *dest;
  	QueryDesc  *queryDesc;
  	instr_time	starttime;
  	double		totaltime = 0;
  	int			eflags;
  	int			instrument_option = 0;
  
--- 407,420 ----
   */
  void
  ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into, ExplainState *es,
! 			   const char *queryString, ParamListInfo params,
! 			   instr_time planduration)
  {
  	DestReceiver *dest;
  	QueryDesc  *queryDesc;
  	instr_time	starttime;
  	double		totaltime = 0;
+ 	double		plantime = INSTR_TIME_GET_DOUBLE(planduration);
  	int			eflags;
  	int			instrument_option = 0;
  
*************** ExplainOnePlan(PlannedStmt *plannedstmt,
*** 482,487 ****
--- 490,500 ----
  	/* Create textual dump of plan tree */
  	ExplainPrintPlan(es, queryDesc);
  
+ 	if (es->format == EXPLAIN_FORMAT_TEXT)
+ 		appendStringInfo(es->str, "Planning time: %.3f ms\n", 1000.0 * plantime);
+ 	else
+ 		ExplainPropertyFloat("Planning Time", 1000.0 * plantime, 3, es);
+ 
  	/* Print info about runtime of triggers */
  	if (es->analyze)
  	{
diff --git a/src/backend/commands/prepare.c b/src/backend/commands/prepare.c
new file mode 100644
index 62208eb..48e1ea8
*** a/src/backend/commands/prepare.c
--- b/src/backend/commands/prepare.c
*************** ExplainExecuteQuery(ExecuteStmt *execstm
*** 629,634 ****
--- 629,635 ----
  	ListCell   *p;
  	ParamListInfo paramLI = NULL;
  	EState	   *estate = NULL;
+ 	instr_time	planstart, planduration;
  
  	/* Look it up in the hash table */
  	entry = FetchPreparedStatement(execstmt->name, true);
*************** ExplainExecuteQuery(ExecuteStmt *execstm
*** 654,662 ****
--- 655,668 ----
  								 queryString, estate);
  	}
  
+ 	INSTR_TIME_SET_CURRENT(planstart);
+ 
  	/* Replan if needed, and acquire a transient refcount */
  	cplan = GetCachedPlan(entry->plansource, paramLI, true);
  
+ 	INSTR_TIME_SET_CURRENT(planduration);
+ 	INSTR_TIME_SUBTRACT(planduration, planstart);
+ 
  	plan_list = cplan->stmt_list;
  
  	/* Explain each query */
*************** ExplainExecuteQuery(ExecuteStmt *execstm
*** 665,671 ****
  		PlannedStmt *pstmt = (PlannedStmt *) lfirst(p);
  
  		if (IsA(pstmt, PlannedStmt))
! 			ExplainOnePlan(pstmt, into, es, query_string, paramLI);
  		else
  			ExplainOneUtility((Node *) pstmt, into, es, query_string, paramLI);
  
--- 671,677 ----
  		PlannedStmt *pstmt = (PlannedStmt *) lfirst(p);
  
  		if (IsA(pstmt, PlannedStmt))
! 			ExplainOnePlan(pstmt, into, es, query_string, paramLI, planduration);
  		else
  			ExplainOneUtility((Node *) pstmt, into, es, query_string, paramLI);
  
diff --git a/src/include/commands/explain.h b/src/include/commands/explain.h
new file mode 100644
index ca213d7..e4fc235
*** a/src/include/commands/explain.h
--- b/src/include/commands/explain.h
*************** extern void ExplainOneUtility(Node *util
*** 67,74 ****
  				  const char *queryString, ParamListInfo params);
  
  extern void ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into,
! 			   ExplainState *es,
! 			   const char *queryString, ParamListInfo params);
  
  extern void ExplainPrintPlan(ExplainState *es, QueryDesc *queryDesc);
  
--- 67,74 ----
  				  const char *queryString, ParamListInfo params);
  
  extern void ExplainOnePlan(PlannedStmt *plannedstmt, IntoClause *into,
! 			   ExplainState *es, const char *queryString,
! 			   ParamListInfo params, instr_time planduration);
  
  extern void ExplainPrintPlan(ExplainState *es, QueryDesc *queryDesc);