A stubbornly high rate of underemployment persists as more than five million Americans are working part-time for economic reasons.  The daily timing of these underemployed workers schedules can often be irregular or unpredictable. This both constrains consumer spending and complicates the daily work lives of such workers, particularly those navigating through nonwork responsibilities such as caregiving. The plight of employees with unstable work schedules is demonstrated here with new findings, using General Social Survey (GSS) data.