Born on Sept. 15, 1967 in South Korea. Was date of birth considered in Western calendar not lunar?

Yes, the date of birth is considered in Western calendar. It is Aug. 12,1967 on Chinese lunar calendar. It is said that Chinese Dog and Sheep end up arguing more than not. They are both affectionate but their emotions may get the better of them. When this pair consists of a Sheep man and a Dog woman, she will be attracted at the possibility of helping this man turn his life around. He will like her high standards. She will soon despair of ever helping him accomplish anything, while he will find her criticisms hard to bear. Anyway, it is just a reference. I think if they both work hard and believe on each other, they can keep a good lasting relationship.