Would it be possible to convince the world to have 13 months with 28 days rather than having 12 months with different numbers of days every month?
Disregarding historical reasons for our current situation at the moment, here are my ideas why this would be useful.
It would be much more reasonable in my opinion, since the week has 7 days, so one would always know at which day one would have appointments just by knowing the date. Also, one would be able to plan into the future much easier, or look back to past events.
Even if one would argue with the moon phases, I think it wouldn't be a good argument, as one cycle take approximately 29.5 days, which doesn't fit with 30 and 31 days anyway.
I was wondering how it might be possible to implement this in our current society. Like how would one go about bringing public attention on this topic?