What was the date of Diwali festival on the year 1988?

According to Deepavali.net, Diwali was on: 9th November 1988.

Diwali falls on the new moon night (Amavasya) between mid-October and mid-November. Diwali is celebrated for five days according to the lunisolar. It begins in late Ashvin (between September and October) and ends in early Kartika (between October and November).