What calculations can be made using date and time values?

The ability to perform addition and subtraction of seconds and minutes when working with date and time values demonstrates the flexibility and granularity available in date-time calculations. This means that you can manipulate time components precisely, which is crucial for tasks such as scheduling, time tracking, or calculating intervals between events. For example, if you need to find out what time it will be 30 minutes from a certain point, or how many seconds passed between two timestamps, you can easily perform these calculations using date and time values.

Understanding that the manipulation of time values extends beyond just days emphasizes the power and complexity of date-time arithmetic. It is not limited to whole years, simple day calculations, or fixed date comparisons. Instead, it recognizes the need for detailed calculations that can involve weeks, months, and smaller units like seconds and minutes, making it a vital aspect of working with time-based data in various applications.