If you know the timings of the monitor, you can work out the clocks fairly easily. The pixel clock is the total horizontal resolution times the horizontal sync rate (which I'm presuming is what you mean by hclock). vclock would then be the vertical sync rate, which is the horizontal sync rate divided by the number of total lines.
Note that "total" lines/pixels is not the same as the active video area. There are blanked pixels at the beginning and end of each line (porches and horizontal retrace time), and there are fully blanked lines at the beginnign and end of each frame/field (vertical blanking, vertical retrace, etc.). Total pixel/line counts include those blanked areas.