Solution - For this you need to change date column value in database. As of now this feature is not available in WPAuction Software .
Please follow these step:
- Update the "date_expiry" column in the wp_mam_auctions table in the MySQL database. After doing this, count-down timer adjusts properly and the item expires from the auction list( change the end time according to your requirement)
-Then run the cron job after you modify the time.