How to use duration?

How to use duration depends on context, but generally duration is used as noun meaning length of time something lasts, and can be used in sentences, measurements, and project planning. In everyday language, use duration to describe how long event lasts, for example the duration of the movie is two hours, or what is the duration of your vacation, meaning how many days. In business and project management, use duration to estimate and schedule tasks, for example task duration is 5 days, project duration is 3 months, work duration is 8 hours per day, which helps create Gantt charts and timelines. In finance, use duration to measure bond sensitivity to interest rates. In roofing, Owens Corning Duration is brand name, but you use duration to describe warranty duration, such as warranty duration is limited lifetime. In grammar, you can use duration in sentence as subject or object, like the duration was longer than expected. In software, duration is field where you enter time length, such as enter duration in hours. In science, use duration to measure elapsed time, like duration of chemical reaction is 10 seconds. To use duration correctly, pair it with time units like seconds, minutes, hours, days, years. You can ask how long is duration, what is duration, or duration of event is. So use duration whenever you need to express or ask about length of time something lasts, in both formal and informal contexts.