a lot depends on the type of SHTF and its severity - if there's a defining time & date >> 911, Pearl Harbor, ect ect ...

ask 20 people when the Covid SHTF started and you'd get 20 different answers - Pelosi & DeBlasio/Cuomo were still partying away after Prez Trump closed off China - they were still battling the seriousness of the SHTF when Europe got closed off ...

point I'm making is that 3 days or 3 weeks or even 3 years makes no difference when a SHTF is a low profile & slow crawl to maturity - people will be recognizing it for what it is differently ...