The clock starts ticking as soon as a H1B holder loses their job, so they have to find a job ASAP before the deadline. I can't remember the exact number but I t

The clock starts ticking as soon as a H1B holder loses their job, so they have to find a job ASAP before the deadline. I can't remember the exact number but I think it is 30-60 days max after a layoff. And if they don't get a job by then, they have to leave the country, otherwise they are basically an illegal immigrant at that point (overstayed beyond permitted visa), and no company that wants to now sponsor them for a H1B can hire them.