diff --git a/types/timestamp.go b/types/timestamp.go
index f15c896..bfcd250 100644
--- a/types/timestamp.go
+++ b/types/timestamp.go
@@ -50,6 +50,9 @@ func (t Timestamp) Time() time.Time {
 
 // Date 回傳日期字串
 func (t Timestamp) Date() string {
+	if t == 0 {
+		return ""
+	}
 	return time.
 		Unix(t.Int64(), 0).
 		In(Local).
@@ -58,6 +61,9 @@ func (t Timestamp) Date() string {
 
 // Datetime 回傳時間字串
 func (t Timestamp) Datetime() string {
+	if t == 0 {
+		return ""
+	}
 	return time.
 		Unix(t.Int64(), 0).
 		In(Local).