As a professional travel management platform, Ali Business Travel provides enterprises with efficient travel booking and management services. For air ticket booking, Ali Business Travel usually follows the regulations of the airline. Generally speaking, airlines will allow passengers to change flights within a certain time range before or after the original departure date. Specific change policies and fees may vary depending on the airline, ticket type and specific circumstances. If you need to take a flight one day later, it is recommended that you contact Ali Business Travel customer service or the customer service of the relevant airline in advance to confirm whether it is feasible to depart one day later and understand the relevant regulations and fees for the change.