Hiro-san usually poops 3 times a day... and I am crate training.
Once in the morning after we get up but before brekkie. (If he's stubborn and doesn't wanna go or doesn't seem interested in pooping, Ill feed him brekkie first and that usually encourages a poopy.) If he doesn't poop he doesn't get free time after brekkie to run and play in his area. He goes straight in the carrier and I take him out every 15 minutes until he poops. If he doesn't go, then I forget about it and continue on with our schedule for the day. It seems like the more I stress and get upset about him not pooping, the less likely he is to go! As well, once he poops and is playing in his area, I'll have a shower and take him out for a walk.
Afterwards, at suppertime, same story there as above except he gets fed first because he rarely misses an evening poop. He gets free time to run around and play like the little manic he is. lol
(Aaaaaaaaaaand then?!)
About 3-4 hours before we go to bed, the husband and I take him for a walk.
Then right before we go to bed he poops. If he doesn't, I don't stress. He's really good at holding it overnight.
