K.L.
My son just went through a complete schedule make-over at 18 months. Since he was 4 months old his schedule was:
7:00 wake-up, breakfast, play
9:00-11:00 nap
11:00-12:00 play
12:00 lunch
1:00 - 4:00 nap
6:00 dinner
7:30 bed (in the crib and asleep)
His new schedule is:
7:000 wake-up, breakfast, play
9:00 snack
11:00 lunch
11:30 nap (2-3 hrs)
3:00 snack
6:00 dinner
8:30 bed (in toddler bed, asleep by 9 at the latest)
It did take about a month for him to fully adjust and get his schedule down. We have always let him guide the schedule.
At 19 months we converted the crib to the toddler bed because he climbed out of the crib, so he's made that transition too!