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Background The location and time of snack consumption may influence the composition, nutrient content and portion sizes of snacks. In this study, we aimed to determine and compare the time, location and frequency of snack consumption among different age groups of Canadians. Methods Nationally representative dietary data from the 2015 Canadian Community Health Survey (CCHS) were used (19,677 participants aged =>2-years). Dietary data were obtained using 24-h dietary recalls. Participants were categorized according to the frequency of snack consumption (1 time, 2–3 times, =>4 times). The snack consumption over 24-h was divided into four time periods: before 10-am, 10-am to 3-pm, 3-pm to 8-pm and 8-pm to 12-am. Meal and snack location was categorized as at home; someone else’s home; restaurants; and other. Results Snacking 2–3 times per day was the most common reported frequency (53.0%). Snacking at home (73.0%) was more prevalent than snacking away from home (27.0%). The most frequently reported time for snacking among Canadians was 3-pm to 8-pm (36.3%), and the least frequently reported time was before 10-am (8.1%). Snacking contributed to a high proportion of Milk and Alternatives (23.7%) and Vegetables and Fruit (23.4%) food groups and lesser proportions of Grain Products (15.4%) and Meat & Alternatives (9.4%) food groups among Canadians. Conclusions Home is the main location, 3-pm to 8-pm is the main time, and 2–3 times per day is the most common reported frequency for snacking. A full understanding of snacking behaviors is needed in order to develop targeted strategies to improve the quality of snack food choices.