Hertz - How long do miles take to post?

Any ideas on how long miles (United in this case) take to post after a rental? Just want to get a rough idea before I call Hertz.

Thanks.

Mine usually take a few weeks to post in my MP account. Remember to be sure and select your earnings preference every time you make a reservation. You can store your mileage program number in your account, but you need to select it when you reserve.