Nonstandard Days Definition(s): “Those who work nonstandard days are defined as working on Saturdays and/or Sundays” (Presser, 2003, p. 417). Source: Presser, H.B. (2003, November). Race-ethnic and gender differences in nonstandard work shifts. Work and Occupations, 30(4), 412 - 439. ann2018-09-14T00:10:49-04:00September 14th, 2018|