A time interval is the duration between two specific points in time. It can be measured in various units, such as seconds, minutes, hours, or days. Time intervals are essential for scheduling events, tracking progress, and understanding the sequence of activities. In mathematics and science, time intervals help analyze changes and relationships. For example, in physics, the concept of velocity relies on time intervals to determine how fast an object moves over a distance. Understanding time intervals is crucial for effective planning and time management in everyday life.