This is not a question – more like a temporary correction. As of today (October 29, 2019), there isn’t a way have snapshot creation frequency greater than 24 hours (1 day). The instructor mentioned "days" but it can only be a max frequency of 1 day at this point. AWS has been working on adding more flexibility (support for additional AWS data sources, policies that will let you do weekly and monthly snapshots, etc.) for a little while now apparently but the currently supported frequencies are 2, 3, 4, 6, 8, 12, and 24 hours.
Thanks for the catch there. I’ll remove the "days" part as I agree it is confusing. I think I was thinking about 24 hours = 1 day….meaning you could get snapshots each day.