Most alcohol withdrawal follows a timeline that starts within hours of your last drink, peaks over the first few days, and eases from there. How long your detox takes depends on how much you drank, how long you drank at that level, and your overall health, so the exact number of days varies from one person to the next. Still, the medical pattern is well understood. In the sections below, you will find what tends to happen day by day and why the schedule matters for your safety.