Stray days added to duration

[TymekDev]

Hey, I am having an issue where the relative time between 2022-07-11T09:00:00+02:00 and 2023-07-11T09:00:00+02:00 is 1 year, 5 days instead of 1 year. Similarly 2023-05-11T09:00:00+02:00 and 2023-07-11T09:00:00+02:00 are 2 months, 1 day where I'd expect it to be just 2 months. As I shorten or lengthen the difference between datetimes the days decrease or increase respectively.

I can think of possibilities at calculation level where these come from, however I find the human-readable duration confusing.

[keithamus]

That does seem confusing. Would you kindly add a set of failing tests around here:

relative-time-element/test/relative-time.js

Lines 1756 to 1762 in 3a8f30f

	{
	reference: '2023-03-23T12:03:00.000Z',
	datetime: '2023-03-21T16:03:00.000Z',
	format: 'relative',
	tense: 'past',
	expected: '2 days ago',
	},

If you raise a PR where the expected is your desired text, and we can look at a fix.