I just posted a response to another question of yours about the ActiveView OCX...
You can pass time parameters to a display that is calling the acview.exe using a variety of methods, but it isn't a property of the OCX itself... rather, it's related to the object model of the display and executable. The PI WebParts product, for example, sends time parameters to the PI ActiveView web part they deliver from another web part on the page.
Do you need a code example? (I'm the mouth, not the brains, of this operation...)