Units of time are measurements that help us understand and organize our daily lives. The most common units include seconds, minutes, hours, days, weeks, months, and years. Each unit represents a specific duration, with seconds being the smallest and years the largest. For example, there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. These units allow us to schedule activities, plan events, and keep track of important moments. For instance, we might say a movie lasts 120 minutes or that a birthday is in two weeks. Understanding these units helps us manage our time effectively and enjoy our lives to the fullest.