'Appointed Time' in the Bible

“Speak to the sons of Israel and say to them, ‘The Lord’s appointed times which you shall proclaim as holy convocations—My appointed times are these:

‘These are the appointed times of the Lord, holy convocations which you shall proclaim at the times appointed for them.

‘These are the appointed times of the Lord which you shall proclaim as holy convocations, to present offerings by fire to the Lord—burnt offerings and grain offerings, sacrifices and drink offerings, each day’s matter on its own day—

So Moses declared to the sons of Israel the appointed times of the Lord.