Bank of China can exchange euros on the same day, which usually takes about 30 minutes. No need to make an appointment, but if the amount is large, it is best to contact the bank in advance. Converting RMB into foreign currency at China Bank:

1. If you want to exchange cash, you must go to the bank counter to exchange it. You need to bring your valid ID card to the counter to fill out the application for purchasing foreign exchange.

2. If the money is in the card, you can exchange it at the ATM first, and then go directly to the bank counter to withdraw it.

3. Online banking exchange: log in to online banking, select investment and wealth management, click settlement and sale of foreign exchange, select RMB to purchase foreign exchange, and then withdraw cash from the bank.