USDA survey data shows average weekly work hours for California farmworkers remained constant after implementation of state overtime law

Year Hours worked per week
2014 42.8
2015 42.7
2016 43.3
2017 42.8
2018 42.6
2019 43.1
2020 41.5
Average hours worked per week, 2014-18 42.8
Average hours worked per week, 2019-20 42.3

Source: National Agricultural Statistics Service, "Annual Average Number of Hired Workers, Gross Wage, and Base Hours Worked – Regions and United States," Farm Labor survey reports, reports from years 2014-2020. 

View the underlying data on epi.org.