Germs that last on surfaces for two days and got spread onto a different surface does that new surface of germs take a new two days to become unviable?

Vague post: The ability/duration of a germ survival on any external surface varies with the germ & the environment they are in. When/if the environment is not supportive (moist, enriched with nutrients, etc.) it's survival is limited. The clock does not start over when a germ moves from one unfavorable environment to another. IE. two days with a bland environment until death remains two days.