If the judge imposes a sentence which includes a suspension of your driver’s license, you must surrender your license to the court or the Department of Motor Vehicles (DMV).
Until the license is surrendered, additional days (up to 180 days) will be added to the suspension period. Essentially, the clock doesn’t start running on your suspension until you surrender your license. This does not mean that you are not suspended until you surrender your license. It means by not surrendering your license you are increasing the period of time you are suspended.