What is the amount of jail time in long island nyc/ny state for leaving the scene of an accident Car-vs-bike?

Hello I Have had the misfortune of coliding with a person on a bike and unfortunately leaving them at the scene. Thankfully the rider was not to seriously hurt. I have no prior contact with the law at all, except for my stupid mistake of leaving the injured biker. (also no drugs/alcohol) I was charged with leaving the scene of an accident and wreckless driving and endangerment. The rider was however riding toward my car against traffic while I had the green light. Again it was more of a collision/t-bone and was not head on. I have a public defender appointed to me but would like to know out right what type of jail time and other penalities That I am facing. I thank all and anyone in advance for their help and or comments