you try a simple Stronglifts 5x5 program. If you don't have to wait for a station it's entirely possible to complete the following stripped down version in 30 minutes.

When: You lift three days a week. Preferably MWF, but you can adapt to your schedule
Method: There are two workouts. Workout A and Workout B. You alternate between the two every time you go to the gym.

Workout A:

Squat: 5 sets of 5 repetitions (25 in all) at the same weight
Bench Press: 5 sets of 5 repetitions at the same weight
Barbell Row: 5 sets of 5 repetitions at the same weight

Workout B:

Squat: 5 sets of 5 repetitions at the same weight
Overhead Barbell Press: 5 sets of 5 repetitions at the same weight
Deadlift: 1 set of 5 repetitions

The idea is that every session you do a lift, you increase the weight 5 pounds. So if I did Workout A on Monday and squatted 135 pounds, on Wednesday when I do Workout B I would squat 140 pounds. If you are unable to complete all of your sets at a given weight you try it again then next time you do that lift. If you fail to complete all your sets for a given lift two workouts in a row you reduce the weight 5 pounds the next time you do that lift.

This is a very simple lifting plan for beginners that will help you add significant strength if completed over a few months. There are lots of variations, but this one is fast, simple, and effective. Just make sure you keep the starting weights really low while you focus on form.