In USA, when do the health benefits start? And when does the healthcare premium taken out of paycheck? Any specific dates and example you could give would be nice. Say, you started work on Monday, 2/4. Your first paycheck would have been 2/15 (for 1 week from 2/4 - 2/8). Next paycheck would have been 3/1 for 2/9 - 2/22.
(Looking for specifics for a possible legal issue. Not looking for don't join the company or any other JML or HR diatribe, let them eat their steak peacefully for this thread.)