[Will it be found out?] Timing and submission methods for the notification of opening a business for civil servants and teachers who are quitting

I want to earn money as a freelancer to quit being a teacher, but do I absolutely have to submit a notification of opening a ...

Does the company run as usual on the day the president takes a day off?

Have you ever felt a sharp pang in your chest whenever your smartphone vibrates in your pocket during a well-deserved day off ...