Not sure if you know this, but this is exactly how the Republican Calendar worked during the French Revolution. The bonus days were known as the sans-culottides

Not sure if you know this, but this is exactly how the Republican Calendar worked during the French Revolution. The bonus days were known as the sans-culottides (meaning days of the "sans-culottes," the self-chosen name for the Revolutionaries reinforcing the difference between them and the nobility) and celbrated Republican values like Labor and Virtue.