field.AutoCreateTime = UnixMillisecond
		} else {
			field.AutoCreateTime = UnixSecond
		}
	}

	if v, ok := field.TagSettings["AUTOUPDATETIME"]; (ok && utils.CheckTruth(v)) || (!ok && field.Name == "UpdatedAt" && (field.DataType == Time || field.DataType == Int || field.DataType == Uint)) {
		if field.DataType == Time {
			field.AutoUpdateTime = UnixTime
		} else if strings.ToUpper(v) == "NANO" {