Zarrin time deposit accounts suits those who are uncertain about any particular long term deposit. This kind of deposit provides you with interest rates like those of long term deposits compliant to its duration. In fact, Zarrin is a special 4 – month deposit which can be converted into a 1 – year deposit as soon as the 5th month arrives. At the end of the term, the difference between the interest rates are calculated and paid to the depositor. These deposits are exempted from 5% fine in case of an earlier closure. Depositors have the choice to determine the first date of receiving their interest.