You get some peculiar criteria for some contracts.
I've got 2 days to accept a contract to rescue a kerbal trapped in space. Presumably if I don't save them in time they perish.
Sounds sort of believable. 2 days trapped orbiting the planet in nothing but a space-suit sounds rather harsh, but not unsurprising that someone could survive that long, given enough oxygen and that they aren't frozen/burnt to death or blasted by solar radiation.
Of course, if I accept the contract though, I then have five years to complete it in.
The fellow can survive up there for half a decade on his own, no food or water, or heating (bar exposure to the sun), waiting for a rescue.