I try and have dinner between 5-5:30pm but this can be hard when tim finishs work at 5 one night of the week, most nights he finishs at 7pm, so eats when he gets home.
For us 5-5:#0pm is much easier, the girls have there bath straight after dinner and then into bed around 7-7:30pm.
I have been told that Children are more hungry around lunch time.