Yes, you would need to set the time. Below is a screen shot and the underlined part is the time in seconds when the 'animation' timeline would start.
So, whatever time in your video you want a timeline to start just put the time in seconds in this area.
If you want another timeline to fire at a future point (or the same timeline!) then you would repeat this "if" statement but change the T variable to "T == 1" and so on as when each "if" statement runs the variable is increased by 1. ( T++ ).
EDIT** I've done a little example with your document. Not all of it but enough to get you going
nikesofast_edited.zip (2.5 MB)