Setting value for a view filter How do I set a view filter so that the date of item makes it disappear WHEN the event occurs?

Right now when I edit the filter I have it Operator set to 'is greater than or equal to' and the Value set to 'today', but I want it to disappear at the exact time the event is occurring. 

What do I put in 'value' for that to happen?
now worked. I also discovered +1 works for one hour before the event.