'Appointed Time' in the Bible

The cook picked up the thigh and what was on it and set it in front of Saul. Then Samuel said, "Here is what is left! Set it before you and eat, for it has been kept for you until the appointed time, about which I said, "I've invited the people.'" So Saul ate with Samuel that day.

Saul replied, "When? I saw that the people were scattering from me, that you didn't come at the appointed time, and that the Philistines were assembling at Michmash. I thought, "The Philistines will come down against me at Gilgal but I've not sought the favor of the LORD,' so I forced myself to offer the burnt offering."