18 Dec 2022 2:17 pm
How about a 13 Month Calendar, each with 28 days (4 weeks).
"The 13-month calendar was devised by Auguste Comte in 1849. It was based on a 364-day year which included the one or two "blank" days that Abbé Mastrofini, an Italian Roman Catholic priest, had devised 15 years before. Each of the 13 months had 28 days and exactly four weeks."
https://myweb.ecu.edu/mccartyr/13-month.htm