diff --git a/callbacks/update.go b/callbacks/update.go
index 3196c436..36bec35a 100644
--- a/callbacks/update.go
+++ b/callbacks/update.go
@@ -233,10 +233,10 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
 								value = stmt.DB.NowFunc().UnixNano()
 							} else if field.AutoUpdateTime == schema.UnixMillisecond {
 								value = stmt.DB.NowFunc().UnixNano() / 1e6
-							} else if field.GORMDataType == schema.Time {
-								value = stmt.DB.NowFunc()
-							} else {
+							} else if field.AutoUpdateTime == schema.UnixSecond {
 								value = stmt.DB.NowFunc().Unix()
+							} else {
+								value = stmt.DB.NowFunc()
 							}
 							isZero = false
 						}
diff --git a/schema/field.go b/schema/field.go
index 5dbc96f1..7beed30d 100644
--- a/schema/field.go
+++ b/schema/field.go
@@ -24,6 +24,7 @@ const (
 	UnixSecond      TimeType = 1
 	UnixMillisecond TimeType = 2
 	UnixNanosecond  TimeType = 3
+	DefaultTime     TimeType = 4 //DefaultTime is time.Time
 )
 
 const (
@@ -255,8 +256,10 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
 			field.AutoCreateTime = UnixNanosecond
 		} else if strings.ToUpper(v) == "MILLI" {
 			field.AutoCreateTime = UnixMillisecond
-		} else {
+		} else if strings.ToUpper(v) == "UNIX" {
 			field.AutoCreateTime = UnixSecond
+		} else {
+			field.AutoCreateTime = DefaultTime
 		}
 	}
 
@@ -265,8 +268,10 @@ func (schema *Schema) ParseField(fieldStruct reflect.StructField) *Field {
 			field.AutoUpdateTime = UnixNanosecond
 		} else if strings.ToUpper(v) == "MILLI" {
 			field.AutoUpdateTime = UnixMillisecond
-		} else {
+		} else if strings.ToUpper(v) == "UNIX" {
 			field.AutoUpdateTime = UnixSecond
+		} else {
+			field.AutoUpdateTime = DefaultTime
 		}
 	}