harvest

Definition:

The term "harvest" refers to the gathering in of ripe fruits or vegetables from the plants on which they were growing.

The harvest time normally happens at the end of a growing season.
The Israelites held a "Festival of Harvest" or "Festival of Ingathering" to celebrate the reaping of the food crops. God commanded them to offer the first fruits of these crops as a sacrifice to him.
In a figurative sense, the word "harvest" can refer to people coming to believe in Jesus or can describe a person's spiritual growth.
The idea of a harvest of spiritual crops fits with the figurative image of fruits being a picture of godly character qualities.

It is best to translate this term with the word that is commonly used in the language to refer to the harvesting of crops.
The event of harvesting could be translated as, "time of gathering in" or "crop gathering time" or "fruit picking time."
The verb "to harvest" could be translated as, "to gather in" or "to pick up" or "to collect."