diff --git a/executor.go b/executor.go
index 5ac546805..f29fdfe9f 100644
--- a/executor.go
+++ b/executor.go
@@ -537,7 +537,7 @@ func (e *Executor) executeSetBit(ctx context.Context, db string, c *pql.Call, op
 	var timestamp *time.Time
 	sTimestamp, ok := c.Args["timestamp"].(string)
 	if ok {
-		t, err := time.Parse("2006-01-02T15:04:05", sTimestamp)
+		t, err := time.Parse(TimeFormat, sTimestamp)
 		if err != nil {
 			return false, fmt.Errorf("invalid date: %s", sTimestamp)
 		}
diff --git a/executor_test.go b/executor_test.go
index 73ddab4e4..9cdc663af 100644
--- a/executor_test.go
+++ b/executor_test.go
@@ -420,7 +420,7 @@ func TestExecutor_Execute_Remote_SetBit_With_Timestamp(t *testing.T) {
 	s.Handler.Executor.ExecuteFn = func(ctx context.Context, db string, query *pql.Query, slices []uint64, opt *pilosa.ExecOptions) ([]interface{}, error) {
 		if db != `d` {
 			t.Fatalf("unexpected db: %s", db)
-		} else if query.String() != `SetBit(frame="f", id=10, profileID=2, timestamp="2016-12-11T10:09:07")` {
+		} else if query.String() != `SetBit(frame="f", id=10, profileID=2, timestamp="2016-12-11T10:09")` {
 			t.Fatalf("unexpected query: %s", query.String())
 		}
 		remoteCalled = true
@@ -445,7 +445,7 @@ func TestExecutor_Execute_Remote_SetBit_With_Timestamp(t *testing.T) {
 	}
 
 	e := NewExecutor(idx.Index, c)
-	if _, err := e.Execute(context.Background(), "d", MustParse(`SetBit(id=10, frame=f, profileID=2, timestamp="2016-12-11T10:09:07")`), nil, nil); err != nil {
+	if _, err := e.Execute(context.Background(), "d", MustParse(`SetBit(id=10, frame=f, profileID=2, timestamp="2016-12-11T10:09")`), nil, nil); err != nil {
 		t.Fatal(err)
 	}
 
diff --git a/pql/ast.go b/pql/ast.go
index dec73ac2b..3168e5ec0 100644
--- a/pql/ast.go
+++ b/pql/ast.go
@@ -100,8 +100,7 @@ func (c *Call) String() string {
 		case []uint64:
 			fmt.Fprintf(&buf, "%v=%s", key, joinUint64Slice(v))
 		case time.Time:
-			layout := "2006-01-02T15:04:05"
-			fmt.Fprintf(&buf, "%v=\"%s\"", key, v.Format(layout))
+			fmt.Fprintf(&buf, "%v=\"%s\"", key, v.Format(TimeFormat))
 		default:
 			fmt.Fprintf(&buf, "%v=%v", key, v)
 		}