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Changes between Initial Version and Version 1 of Ticket #19210, comment 18

initial	v1
1		After looking into a lot of algorithms for date diffing, including the ones suggested above and the ones from `python-dateutil` (which get pretty complex) I decided to go for the most simple solution I could find. I assume `timesince` wasn't ever meant to be an calculation. If we would want an exact calculation, we should completely re-implement it to correctly work with the different number of days in the months and so on.
	1	After looking into a lot of algorithms for date diffing, including the ones suggested above and the ones from `python-dateutil` (which get pretty complex) I decided to go for the most simple solution I could find. I assume `timesince` wasn't ever meant to be an exact calculation. If we would want an exact calculation, we should completely re-implement it to correctly work with the different number of days in the months and so on.
2	2
3	3	However, there is a very simple fix to the accumulated error that grows with the given time period: just use `calendar.leapdays` from the standard library and substract it from the number of days.