The pontifex quite often used intercalary months for political ends, like lengthening terms of office. But as dictator, Caesar’s term was as long as he wanted,

The pontifex quite often used intercalary months for political ends, like lengthening terms of office. But as dictator, Caesar’s term was as long as he wanted, so why not fix the damn thing? Since taxes were determined by month, it’s much better to have stable months, so distant provinces knew for sure what day it was. Still, cool to imagine Caesar as a hacker automating his job.