Bank Service in Tibet
In Tibet, only US dollars can be accepted besides Chinese Yuan. Also shops that accept American currency are very limited and you might not be able to get a good deal for an exchange rate. Credit cards can only be used at some hotels. The Bank of China also accepts credit cards. ATM is not widely available. Exchanging your money to Chinese currency will be the best option for you, which can be done at the Bank of China.
As in the rest of China, Renminbi (RMB) is the legal currency in Tibet. Bank of China, Construction Bank and Agriculture Bank set their branches in Lhasa. Agriculture Bank has the most banking outlets and branches of Construction Bank has been connected with a network. There is a branch of Construction Bank at the west junction of the square of the Potala Palace. The ATM has been hooked up to the network and you can draw cashes with credit cards there.
The office hours of the bank is from 9:00 to 12:00 am and 15:00 to 18:00 pm. If you withdraw money with credit cards, please avoid Saturdays and Sundays.