Time intervals are a way of measuring the amount of time between two points. The term 'time intervals' can be used to describe any length of time, from seconds to centuries. One example of a time interval is a period, which is a seven-letter word that is often used to refer to a specific length of time, such as a month or a year. Time intervals are important for measuring the passage of time and for understanding how events are related to each other in terms of when they occurred.