One of the neat things about EVE is that you can still play when you're not playing.

If you don't have a lot of time, one thing you do have time to do is set up which skills your character should be training, and it does this whether you're playing or not. This is obviously beneficial as then your character has improved in certain ways that might get you ahead where previously you failed. If you have time to play on weekends for example, you can still gain a bunch of skills (until the times are much longer at higher levels of skills, of course) during the week with only a few minutes of effort to set up your training queue.

I'm not a current EVE player and I know almost nothing about the game compared to real EVE players, but from someone else with little time at the moment, there's something for you