Dear Ms. Sayah,
Thank you for posting your request on History Hub!
Some states have both long form and short form birth certificates, with the long form birth certificate including greater detail than the short form certificate. Some long form birth certificates record a time of birth. However, not all hospitals in all places and times recorded the time of birth. For more information, please contact the vital records department for where you were born. See the following for a list of vital records departments for US states and territories: https://www.cdc.gov/nchs/w2w/index.htm
We hope this information is helpful.