Maybe just a little OT, but my grand-parens lived in an mountain valley somewhere in Eastern Europe and even though I was still a kid I remember that when they were bringing people in to help them with agricultural work (collecting hay etc) often times said people were not paid with money but instead with "days-worked".
More exactly, once person A had worked for you for
two days you had to pay back by working two days at her place, let's say helping her collecting potatoes or whatever, "number of days worked" was a sort of currency. And providing food to the hired workers was also part of the deal.
Obviously things have changed now, as even then (25 years ago) this practice was beginning to fade off.
What you describe sounds a lot like the labor-day (trudoden) accounting system for collective farms in the Soviet Union. They actually did pay wages to the workers according to the number of labor-days worked. (Note: It wasn't literally one day -- harder tasks could earn more than one labor-day per day.)
If one farm needed some temporary labor, it would've been easier to trade labor-days with another farm than to settle in cash.
I don't know about other Soviet bloc countries, but I would not be surprised if they used a similar system. 25 years ago would've been towards the end of the Communist era, which would also explain why it was fading.
More exactly, once person A had worked for you for two days you had to pay back by working two days at her place, let's say helping her collecting potatoes or whatever, "number of days worked" was a sort of currency. And providing food to the hired workers was also part of the deal.
Obviously things have changed now, as even then (25 years ago) this practice was beginning to fade off.