What is the estimated duration in hours for the portion of the Hadith: "He left her in the early morning after he had prayed Fajr, while she was in her prayer place, then he returned after the forenoon had advanced"?

The exact duration between the Prophet's (peace be upon him) departure from Juwayriyah and his return to her cannot be precisely determined, because his departure was for performing the Fajr prayer and his return was after sunrise and the Duha prayer. This period varies depending on times, places, and seasons of the year. Currently, it is estimated to be approximately two hours. The intent of the hadith (definition) is to highlight the virtue of remembrance (dhikr) and glorification (tasbih) at the beginning of the day.