The exchange rate changes in real time on trading days, the interbank market is closed on non-trading days, and the bank's quotation to customers is suspended or the price difference is large. The foreign exchange rate of the same bank (which can be different branches) at the same time is the same. However, the foreign exchange rate of banks now fluctuates "in real time" and changes every five minutes. Although the range is not large, there must be high points and low points in one day.

Introduction to the exchange rate of foreign exchange purchased by banks:

The expansion of exchange rate fluctuations means that the RMB will double every day against the US dollar, whether it is rising or falling. For ordinary people, if outbound travel is converted into dollars, the range of change will increase uncertainty. Lu Zhengwei (Weibo), chief economist of Industrial Bank, said that after the fluctuation range of RMB against the US dollar was expanded,

For individuals, the cost of changing foreign exchange today and tomorrow may be different. Different banks carry out different exchange rates. Generally speaking, the foreign exchange rate of some small and medium-sized commercial banks will be more suitable for customers, because they need to absorb foreign exchange deposits at a more favorable exchange rate.