I have some unit tests for billing and subscription code for my company that started breaking in CI today due to the leap day: https://github.com/sagemathinc/co

I have some unit tests for billing and subscription code for my company that started breaking in CI today due to the leap day: https://github.com/sagemathinc/cocalc/commit/8575029c2b76787d5b178c3bfb406baa2d8d585e https://github.com/sagemathinc/cocalc/commit/8575029c2b76787...