Would ordering by date work in my case?

I have set default format for dates as d.m.Y - 11.07.2012

What if i will have 10 pages created within the same day, how ordering will work with this? 10 pages have the same creation date, how Grav can order them?

I think it would then order alphabetically by file folder name, maybe by defined slug. I double checked the docs and I don't see anything about multi-factor sorting. In the past I've done that manually in my Twig, working with the Collections object directly.

Maybe it's better to use unix date format, then reformat it with twig?