“…In the United States, for example, the Department of Labor supports the collection of time use data across a wide range of domains to conduct economic research, understand health, safety, and family and work-life balance, and make international comparisons. Time use data may be obtained for a single occasion in a target population, such as time devoted by students to academic study (Mucciardi, 2013), or for multiple time points to understand patterns of change in behaviors over time, such as how children's time spent with their parents changes over time (Sandberg & Hofferth, 2001).…”