Medical experts usually say the average person can live for 4 to 6 weeks without food. The amount of time someone can go without water is much shorter, roughly a week (or less).
Your employer can force you to take leave at a particular time as long as they give you at least two weeks' notice. However, it is common for employer and employee to come to an agreement about the timing of annual leave. If you put in a request for leave, your employer has to have a good reason to refuse it.
Employee Responsibilities. Employees must provide 30 days advance notice of the need to take FMLA leave. when the need is foreseeable. When 30 days notice is not possible, the employee. must provide notice as soon as practicable and generally must comply with an. employerâs normal call-in procedures.