Most banking services provided by ADCB will be unavailable for three days the bank announced in an email sent to its customers.
The bank is carrying out a system enhancement which will take effect from 4pm Saturday 30 September until 8am Tuesday 3 October 2017.
Customers will be able to use their credit and debit cards for cash withdrawals at ATMs and make in-store and online purchases.
Images credit: ADCB