But in many cases, suppliers won’t offer unless asked. Dating essentially allows for payment over a period of time such as 90 or 120 days and is expressed as 30-60-90, for example. If you receive 30-60-90 terms it simply means you will be paying a third of the amount due in 30 days, a third in sixty days and the balance due at 90 days. There is generally no interest charged for dating. When cash is a little tight, ask suppliers for extended terms. Most will make an attempt to help in some way.