how late is "later on"?

[LeTyan]

Hi teachers:

please take a look at this,
" We will discuss this topic later on."

I really can't figure out when exactly "later on" implies.
Is it more like "in a few minutes"?
Or is it more like "in a few days"?
Or is it impossible to tell?

Thanks a bunch!

 

[Rover_KE]

It depends on the context.

In a seminar that lasts an hour it means in less than 60 minutes.

In a lecture outlining a term's coursework it could mean in six weeks.

Rover