Quick Bonus account question

[manpower]

So I've got a reload bonus sitting on party that says it expires today at 6:30pm (it's 9:30 now) the bonus ammount is still sitting in my account and I need about 300 raked hands to go in order to clear it. Will it expire at midnight or have I somehow extended the bonus period by playing most of the hands necessary to clear it.

Basically I'm asking: "what's the deal with expiring bonuses?"
My appologies for such a mundane post [img]/images/graemlins/tongue.gif[/img]