Have a look at the international fixed calendar, used by kodak internally until 1989. 13 months of 28 days, it looks so clean
Everything months starts a Sunday (I’d rather start weeks on Monday but whatever), every second Monday is the 9th. Plus it has the advantage of keeping the 7 days week we’re used to. Software excluded, it looks easy to adopt.
Have a look at the international fixed calendar, used by kodak internally until 1989. 13 months of 28 days, it looks so clean
Everything months starts a Sunday (I’d rather start weeks on Monday but whatever), every second Monday is the 9th. Plus it has the advantage of keeping the 7 days week we’re used to. Software excluded, it looks easy to adopt.
Alternatively there was the French revolutionary calendar with 10 days weeks and 12 months