At Denny's, Kids can eat pancakes for FREE between 4PM to 10PM everyday in September with the purchase of an Adult entree. Valid at participating locations. This Denny’s promotion is available to all kids 10 and under with the purchase of any adult entrée $6.00 or more. ALSO, Tuesday nights are family nights at Denny’s, Children under 10 eat FREE from 4pm-10pm! Limit 2 free kids’ entrées with the purchase of 1 adult entrée. Click on Freebie Link for a Denny's Location near you.