Is there any way for a DNA test to find my real birthday?

I'm adopted, and my parents aren't sure when my actual birthday is, they just have kind of an estimate. I know that it should not matter, but it feels weird not knowing my actual birthday. I wouldn't even know where to find it out, because I don't even know which hospital I was born in, or anything... show more I'm adopted, and my parents aren't sure when my actual birthday is, they just have kind of an estimate. I know that it should not matter, but it feels weird not knowing my actual birthday. I wouldn't even know
where to find it out, because I don't even know which hospital I was born in, or anything about my biological parents. I'm trying to convince my parents to get me a DNA test for the holidays, and I'm wondering if there's any way for those tests to help find my actual birthday.
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