In a post-apoc world there are societies of people that live their entire lives in huge underground bunkers. They live there, as did their parents, as did their parents, and so forth.
Their only reference to time are the time-keeping devices they use that are based on pre-apoc time-keeping devices. There is no contact with the surface world or other societies.
If I wanted to steal time from these people, for whatever reason, say one whole day, I would likely go about stealing smaller units of time over a longer period of time. E.g. to steal a one day from a whole year I would:
- calculate how many minutes a whole day has: 24 hours times 60 minutes = 1440 minutes
- divide my minutes by a whole year of time-stealing: 1440 minutes divided by 365 days = ~4 minutes per day
- steal these for minutes over the time of a whole day: e.g. every 1 minute every 6 hours, or about 10 seconds every hour
Q: How much more time could I reasonably steal from my society? Or is this amount already too easy to detect?
- People live their daily lives, they have good education and are a healthy mix of skeptics and non-questioning sheeple
- Assume that I have full control over all time-keeping devices in this society.
Stealing time: A person has 24 hours every day, 365 of these buggers every year (give or take 1 very 4 years), and about 80-100 of these years depending on the person and their lifestyle (excluding manslaughter). If I, let's say, steal a day from them every other week, they lose about a month every year (give or take), that makes them lose a year every dozen of them, which makes them live only 74-90 years1 subjective.
1Again: give or take - this is very loose math, like doing algebra with spaghetti