The "perfect" time of day to feed your baby is whatever time works for both of you. If you're breastfeeding, you might try solids when your milk supply is at its lowest (probably late afternoon or early evening). On the other hand, babies who wake up bright-eyed and eager might be happy to sample solids for breakfast. You'll quickly learn when she's interested in eating and when she isn't, which she'll show you by opening her mouth wide and willingly taking bites versus fussily turning her head away from the spoon you offer her. Follow the cues and don't force feedings — you can always try again later.
Your baby will eat as much solid foods as your baby needs – trust your baby cues. Start out slowly and let baby take time to taste and experiment with the food together with their favorite dishware