Routine for 17 m.o.

[AngelDog]

Can anyone tell me how long after waking from their lunchtime nap their 17 month ish child goes to sleep at bedtime? I am struggling to work out when DS2 is tired and ready to go to sleep in the evening. He normally sleeps 2 hours roughly 1-3pm.

I usually start bed/bath 4 hours after his lunchtime nap...I usually get him up from his nap at 2.00 or 2.30 and start bath at 6, and he's asleep by 7.