The TTL (Time To Live ) Settings displays the configured TTL settings for records in the account by displaying the Default, Min (minimum), and Max (maximum) values. If you have the necessary privileges, you can configure individual record settings.
Enter the TTL value as an integer number of seconds (maximum of 2147483647) by clicking the pencil icon next to the record type / SOA value. Change the necessary value(s), and then click the Save button.