1. Plan ahead: know the business hours of the bank and make sure to go to the bank during business hours. Usually, most banks are open at certain times on weekdays.
2. Use online banking: Many banks provide online banking services, and you can conduct foreign exchange transactions through your computer or mobile phone. This way can avoid the restriction of bank business hours.
3. Use self-service equipment: Some banks provide self-service equipment outside business hours, such as ATMs or self-service money exchange equipment. You can confirm in advance whether the bank provides these services and know the location and usage of the equipment.
4. Find other legal money changers: Besides banks, there will still be other legal money changers to provide services. You can look for these money changers in the surrounding areas or airports.
Please note that the above suggestions are for reference only, and the specific situation may be different due to different regional and banking policies and regulations. It is recommended to consult the bank or relevant financial institutions in advance before the operation is needed to ensure that the most accurate information can be obtained.