Counting months and days are two very different metrics.
Months are lunar. Days are solar.
Depends on the calendar system, as far as this discussion goes, the Greogorian calendar system is solar even for months.
Months are lunar. Days are solar.
https://www.wolframalpha.com/input?i=2016-04-04+to+2019-01-3... = 2 years 9 months 27 days
https://www.wolframalpha.com/input?i=2019-01-31+to+2016-04-0... = 2 years 9 months 26 days
The duration should be identical but is off by one day.
One day a space mission will fail due to this bug.
Reported several times, they never cared.
both show an identical duration of 2 years 9 months 26 days (edit: despite reporting 1032 and 1031 days respectively).
The actual FA:
https://www.ehn.org/pfas-floss-2658203711.html
And the OP:
https://cen.acs.org/environment/persistent-pollutants/Fast-f...
Though I guess to be fair Wordle doesn't force hard mode, so it seems this version shouldn't either.
https://www.wolframalpha.com/input?i=2016-04-04+to+2019-01-3... = 2 years 9 months 27 days
https://www.wolframalpha.com/input?i=2019-01-31+to+2016-04-0... = 2 years 9 months 26 days
The duration should be identical but is off by one day.
One day a space mission will fail due to this bug.
Reported several times, they never cared.
Jan 2024 - Nov 2023 example (both cases show "2 months 1 day"):
https://www.wolframalpha.com/input?i=2024-01-31+to+2023-11-2...
https://www.wolframalpha.com/input?i=2024-01-30+to+2023-11-2...
Aug 2024 - Jun 2024 example (same bug):
https://www.wolframalpha.com/input?i=2024-08-31+to+2024-06-2...
https://www.wolframalpha.com/input?i=2024-08-30+to+2024-06-2...
The same thing doesn't happen from Jul 2024 - May 2024 (results vary by 1 day):
https://www.wolframalpha.com/input?i=2024-07-31+to+2024-05-2...
https://www.wolframalpha.com/input?i=2024-07-30+to+2024-05-2...