diff --git a/src/Illuminate/Database/Query/Grammars/PostgresGrammar.php b/src/Illuminate/Database/Query/Grammars/PostgresGrammar.php
index 2103f6c906fe..9726de5aec2c 100755
--- a/src/Illuminate/Database/Query/Grammars/PostgresGrammar.php
+++ b/src/Illuminate/Database/Query/Grammars/PostgresGrammar.php
@@ -109,8 +109,13 @@ protected function whereLike(Builder $query, $where)
     protected function whereDate(Builder $query, $where)
     {
         $value = $this->parameter($where['value']);
+        $column = $this->wrap($where['column']);
 
-        return $this->wrap($where['column']).'::date '.$where['operator'].' '.$value;
+        if ($this->isJsonSelector($where['column'])) {
+            $column = '('.$column.')';
+        }
+
+        return $column.'::date '.$where['operator'].' '.$value;
     }
 
     /**
@@ -123,8 +128,13 @@ protected function whereDate(Builder $query, $where)
     protected function whereTime(Builder $query, $where)
     {
         $value = $this->parameter($where['value']);
+        $column = $this->wrap($where['column']);
+
+        if ($this->isJsonSelector($where['column'])) {
+            $column = '('.$column.')';
+        }
 
-        return $this->wrap($where['column']).'::time '.$where['operator'].' '.$value;
+        return $column.'::time '.$where['operator'].' '.$value;
     }
 
     /**
diff --git a/tests/Database/DatabaseQueryBuilderTest.php b/tests/Database/DatabaseQueryBuilderTest.php
index 95142e0b698c..85cd68923c7c 100755
--- a/tests/Database/DatabaseQueryBuilderTest.php
+++ b/tests/Database/DatabaseQueryBuilderTest.php
@@ -593,6 +593,10 @@ public function testWhereDatePostgres()
         $builder = $this->getPostgresBuilder();
         $builder->select('*')->from('users')->whereDate('created_at', new Raw('NOW()'));
         $this->assertSame('select * from "users" where "created_at"::date = NOW()', $builder->toSql());
+
+        $builder = $this->getPostgresBuilder();
+        $builder->select('*')->from('users')->whereDate('result->created_at', new Raw('NOW()'));
+        $this->assertSame('select * from "users" where ("result"->>\'created_at\')::date = NOW()', $builder->toSql());
     }
 
     public function testWhereDayPostgres()
@@ -625,6 +629,11 @@ public function testWhereTimePostgres()
         $builder->select('*')->from('users')->whereTime('created_at', '>=', '22:00');
         $this->assertSame('select * from "users" where "created_at"::time >= ?', $builder->toSql());
         $this->assertEquals([0 => '22:00'], $builder->getBindings());
+
+        $builder = $this->getPostgresBuilder();
+        $builder->select('*')->from('users')->whereTime('result->created_at', '>=', '22:00');
+        $this->assertSame('select * from "users" where ("result"->>\'created_at\')::time >= ?', $builder->toSql());
+        $this->assertEquals([0 => '22:00'], $builder->getBindings());
     }
 
     public function testWherePast()