getDateOfBirth.swift

func getDateOfBirth() -> (dicHealth: [String: Any]?, dob: UInt64?) {
  do {
    let dateOfBirth = try self.healthKitStore.dateOfBirth()
    
    var dicHealth = [String: Any]()
    dicHealth["DateOfBirth"] = dateOfBirth.epoch() // it gets epoch number from the date and there is no issue inside.
    dicHealth["TimeZone"] = getTimeZoneString()
    
    return (dicHealth, dateOfBirth.epoch())
  } catch _ {
    print("Either an error occured fetching the user's age information or none has been stored yet.")
    return (nil, nil)
  }
}