'Appointed' in the Bible

Now the appointed duties of the sons of Merari involved the frames of the tabernacle, its bars, its pillars, its sockets, all its equipment, and the service concerning them,

“Now, let the sons of Israel observe the Passover at its appointed time.

On the fourteenth day of this month, at twilight, you shall observe it at its appointed time; you shall observe it according to all its statutes and according to all its ordinances.”

Those men said to him, “Though we are unclean because of the dead person, why are we restrained from presenting the offering of the Lord at its appointed time among the sons of Israel?”

But the man who is clean and is not on a journey, and yet neglects to observe the Passover, that person shall then be cut off from his people, for he did not present the offering of the Lord at its appointed time. That man will bear his sin.

Also in the day of your gladness and in your appointed feasts, and on the first days of your months, you shall blow the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; and they shall be as a reminder of you before your God. I am the Lord your God.”

then make an offering by fire to the Lord, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed times, to make a soothing aroma to the Lord, from the herd or from the flock.

“Command the sons of Israel and say to them, ‘You shall be careful to present My offering, My food for My offerings by fire, of a soothing aroma to Me, at their appointed time.’

‘You shall present these to the Lord at your appointed times, besides your votive offerings and your freewill offerings, for your burnt offerings and for your grain offerings and for your drink offerings and for your peace offerings.’”