Is the timer a specific amount of time?

I know timers that you use on Java or Game maker will vary with the processing speed of the device running it.

Is the timer on MIT app inventor the same, or is their a consistent amount of timer units to a second?

And is the directional speed of objects also relative?

Read about the Clock component here  http://ai2.appinventor.mit.edu/reference/components/sensors.html#Clock      the Clock units are ms.

Thanks!