What is meant by "the hour" in the hadith: "Whoever goes out in the first hour of Friday, and from when does it begin?"

Question:
Peace be upon you, Your Eminence, father. Many questions have been received regarding the determination of the first hours, where it is said that whoever goes out in them is as if he had offered a sacrifice of a camel. What is the criterion for distinguishing those hours? And what is the duration of one hour?

Answer:
The "hour" referred to is a portion of time, not the astronomical hour known today, which is sixty minutes. The meaning is a portion of time, and this is based on two opinions among the scholars. Some hold that it is from after the Fajr prayer until the imam arrives, divided into five parts. Others hold that it is from the rising of the sun until the imam arrives, divided into five parts. Allah knows best. Yes.