Resumen: In the context of growing interest of individuals in the Internet, the literature has not paid attention to the uses of time for children, given the scarcity of appropriate data bases that provide accurate information. To partially cover this gap, we now provide here evidence of the time that children aged between 10 and 12 years dedicate to two online activities: computer communication and computer gaming. To that end, we estimate a simultaneous seemingly unrelated regressions (SUR) model with data from the Spanish Time Use Survey for 2009–2010. Results indicate that being female generates a positive influence on the time devoted to computer communication, and being male generates a positive influence on the time devoted to computer gaming. We also find that a greater number of family members with secondary studies generates a positive influence on the time spent on computer gaming. Children with better health spend more time on both of these activities and, finally, living in a larger city produces a positive effect on the time dedicated to computer gaming. Idioma: Inglés DOI: 10.1080/13504851.2016.1192270 Año: 2017 Publicado en: Applied economics letters 24, 6 (2017), 359-364 ISSN: 1350-4851 Factor impacto JCR: 0.504 (2017) Categ. JCR: ECONOMICS rank: 298 / 353 = 0.844 (2017) - Q4 - T3 Factor impacto SCIMAGO: 0.327 - Economics and Econometrics (Q3)