My sons birthday is Dec 17. Quite often the school Christmas concert was on that day or family and friends were overly busy that weekend. We always had a family Birthday for him. Then on June 17 or as close to the weekend as possible he would have a birthday party with all his friends. It was also a way of ending the school year. He got two birthdays in one year. Worked out great. Now he's 34 he does his own thing with his friends and Sunday family dinner includes a birthday cake.