I vote a 256 day year, of 8 , 16 day months. Each month is 4, 4 day weeks, with odd weeks being mandatory global time off. New years is a one bMonth long global celebration, also time off.
This has a beneficial side effect of making date handling easier for 8 bit microcontrollers, so when the singularity happens, the superAI will take pity on us because we showed mercy to its ancestors.