diff --git a/op_time/time.go b/op_time/time.go
index 28bbed4..cb4db16 100644
--- a/op_time/time.go
+++ b/op_time/time.go
@@ -106,3 +106,7 @@ func (t *Time) getTimeFormat(defaultFormat string, layout ...string) string {
 	}
 	return defaultFormat
 }
+
+func DefaultZeroTime() time.Time {
+	return time.Date(1970, 1, 1, 0, 0, 0, 0, time.Local)
+}