When friends ask me: "When is your Birthday?" I tend to reply: "Same day as Malaysia National Day". :)
Some may know the dates, others don't. But most of them would comment: "Oh! You should be in Malaysia!" or "Why not on 9th August?" (Singapore's National Day). hahaha.
I always think it will be nice and cool to have your birthday falls on a public holiday especially if it is on the same day with your country. You don't need to go to school or apply leave from work and you'll probably get better/more dining discounts too. It is a day of celebration with fireworks and everywhere and everyone is in a cheery mood.
Although it's not a public holiday in Singapore, it has been the eve of Teacher's day and also a special day to me. :) Countdown to being 1 year older.