That is about the same timings as at my house. I would try to keep a watch on how quickly after you put them down they are asleep and then again how often they are awake before you get them up. That might give you a better idea if you need to adjust the timings any in the sense of pushing nap till 1 for going down or up at 2:45 instead. Basically though we start at 12:30 to do the naptime routine in the sense of diapers changed, shoes off, beds out and then tucked in so they are in and pretty much asleep by 1. Then around 2:45 - 3 I start to check on them to see who is awake and depending on temperment that day decide if they get up or stay put. Generally mine sleep right through till 3 or even a bit later unless I disturb them. I don't let them go past 3:15.