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Yet, this scenario has been partially challenged by studies indicating that time difficulties can be attributed to poor calculation or counting skills, which can support reasoning on time in school\u2010aged children and adults. Here, we tackle this debate by exploring the performance of young children before they fully develop the symbolic number system. Preschoolers at risk of developing <jats:styled-content style=\"fixed-case\">DD<\/jats:styled-content> were compared with typically developing children in a series of tasks investigating time processing and in their \u2018sense of time\u2019, evaluated by parents and teachers. Results yielded a poorer performance in time reproduction of 5\u2010second intervals and in time discrimination, as well as a weaker \u2018sense of time\u2019, in children at risk of <jats:styled-content style=\"fixed-case\">DD<\/jats:styled-content>. These findings provide evidence of a common magnitude system that would be responsible for deficits in both numerical and temporal domains, already at early stages of life.<\/jats:p>","DOI":"10.1111\/desc.12526","type":"journal-article","created":{"date-parts":[[2016,12,6]],"date-time":"2016-12-06T04:06:39Z","timestamp":1480997199000},"source":"Crossref","is-referenced-by-count":17,"title":["Time processing impairments in preschoolers at risk of developing difficulties in mathematics"],"prefix":"10.1111","volume":"21","author":[{"given":"Valentina","family":"Tobia","sequence":"first","affiliation":[{"name":"Department of Psychology University of Milan\u2010Bicocca  Milano Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luca","family":"Rinaldi","sequence":"additional","affiliation":[{"name":"Department of Brain and Behavioural Sciences University of Pavia  Pavia Italy"},{"name":"NeuroMi\u2014Milan Center for Neuroscience University of Milano\u2010Bicocca  Milan 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