The Current Population Survey (CPS) measure of hours worked is, on average, fairly close to the American Time-Use Survey (ATUS) time-diary estimates of hours when the diary day is in the CPS reference week.
However, the CPS measure of actual hours in the reference week is about 5 percent higher than the hours data collected in ATUS for the other 3 weeks of each month. The fact that the CPS reference week was selected, in part, to avoid holidays both explains some of the difference and simplifies the task of tracking trends in work hours using CPS data.
Analysts must keep in mind, however, that a measure of monthly hours worked constructed from CPS weekly hours data would overstate actual hours worked during the month.
The data used here are from the Current Population Survey and the American Time-Use Survey. To learn more about their concepts, definitions, and data on working hours, see Harley Frazis and Jay Stewart, "What can time-use data tell us about hours at work?" in Monthly Labor Review, December 2004.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Hours: Two surveys compared at https://www.bls.gov/opub/ted/2005/jan/wk1/art04.htm (visited October 03, 2022).