Are there any real calendar systems that have days that are not part of any month?
A non-real example might be the hobbitsʼ calendar where all 12 months consist of 30 days, and the remaining five or six days (the two equinoxes are 1+1, and the solstices are 2 for winter, and one (or two in leap years) for the summer.)
I think the Romans did that.
@calendar_social This one was actually used by France for a time:
This is awesome. We should bring it back.
@calendar_social the french revolutionary calendar: https://en.wikipedia.org/wiki/French_Republican_Calendar#Complementary_days It's not used anymore but it was for 12 years.
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