I want to change the ticket. How should I change it from 12:00 tomorrow to 12 the day after tomorrow?

Ctrip Homepage～My～All Orders～Ticket Orders～I want to change my booking～Follow the prompts...<br/><br/>To help you, please click the green [Accept]!

If it is a train ticket, tomorrow's train ticket cannot be changed to the day after tomorrow, and can only be refunded and repurchased (loss of refund fee). <br/> Whether the bus ticket can be changed or refunded depends on the regulations of the local bus station.