Does time start when you click on "Select Scenario", when you click on "Start", after the loading screen, when you click "we have to survive", or when you click on "OK" during the "Fight the Cold" popup?

Does time end when you click "OK" during the "The Storm Ends" popup, when the UI disappears, when "We Haven't Crossed the Line" appears, when "New London" appears, or when it returns to title screen?

Hi, after reviewing the videos for the two hero mode runs that exist I am curious about why Any% has restrictions on it. After looking at the rules it seems as if there is a Hero Mode category, and a Survivor Mode category titled Any%. There does not appear to be an actual Any% category where anything goes to complete the game. Is this in error or an oversight of some form?

I wanted to learn any% but the only options I see on the board are Survivor Mode (titled as Any%) and Hero Mode (Deathless?). If anyone could provide clarification that would be great.