Using an ordered probit model estimation and quarterly data for the 2018–2020 period from the Continuous National Household Sample Survey (Continuous PNAD), this study sets out to analyse the effects of the coronavirus disease (COVID-19) health crisis on the supply of working hours by men and women in Brazil. The results suggest that the pandemic reduced the probability of men and women supplying larger numbers of working hours, and that women were most affected. In addition, having small children reduced the probability of mothers supplying larger numbers of working hours, while for men that probability increased.