How many days does your work give you for your SO's grandparent?

DH's grandfather just passed away and I don't know if I get any bereavement days. I did read the info online but it's not easy to understand and I am guessing they want it that way. I believe it's mostly based on your managers discretion. So I am just wondering what if any would you get for a SO's grandparent?

Addl info, arrangements are not made yet. It will take place 2 hours from our home..