Here's some food for thought:

You are locked in pic related room under several conditions. If you manage to do it, you will win X milion American dollars, tax free, you can chose how much you get in your bank accounts, how much is paid in physical money, maybe even crypto currency etc.
Lights never go out. Food is dispensed by a machine that you can control but has a limited use, so that you don't make too much filth. You are barren of any way to tell the time.


option a)
You have to last three weeks - if you manage to do it, you will get two milion dollars.
You can leave at any moment, but if you leave too early, you won't get paid. You cannot ask anybody about the lenght of how much more time you need to spend in isolation, that's for you to figure out.

option b)
1 year for 30 bilion dollars, just as the picture describes

option c)
You start with 2$.
Each week spent inside increases your prize by the power of 1,05.
After 10 weeks, you will have 3 dollars.
After 25 weeks, you will have 10 dollars.
After 50 weeks, you will have 2831 dollars.
After 100 weeks, you will have roughly 3853213600000000000000000000000000000000 dollars (sorry I suck at math and this might be slightly wrong).
Your current prize, as well as time spent inside is displayed on a monitor inside the room.


Here's a bunch of links related to this topic.
https://www.youtube.com/watch?v=nlhtFW7KV7o
https://www.nigms.nih.gov/education/fact-sheets/Pages/circadian-rhythms.aspx